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Mathematics Questions and Answers June 05, 2022

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6. Sales (in $) for one week were collected for 18 stores in a food store chain. The data are shown below. The stores and towns they are located in vary in size. Complete parts a} through f). 75.748 126.552 139.151 75.364 68.803 222.051 69.068 55.930 73.880 97,778 76,931 1 00,488 96,506 208,292 88,837 99,535 1 19,1 98 98,572 a) Make a suitable
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Help in each proble. See the instructions. With solutions PS 1B Determine the convergence or divergence of the series. Identify the test used. 1. En=1 (-1)n3n-1 n! 4n 2. Zn=12n2+1 3. En=1 n n 2n+1
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What is one instance where you think linear regression would be useful to you in the political science field? Please describe including why and how it would be used.

For each phase of the experiment clearly identify the following items in your write-up: 1. The independent and dependent variables 2. The null and alternative hypothesis 3. Describe the data (mean, SD, sample size, other relevant info) 4. Identify the statistic used and WHY you choose it (and why you didn t choose another statistic instead) 5.
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Write a 200 word reply to this discussion board submission. The easiest part of the Euler and circuits was Understanding the basic definitions and conditions for the existence of Euler paths and circuits. The hardest Part is Applying the concepts to complex graphs, especially when trying to find Euler paths or circuits manually in large or

The epidemiological, clinical, and bacteriological aspects of shigellosis were studied in a population of hospitalized children in northern Israel. Shigellosis invades epithelial cells of the colon and causes inflammation a severe cases of diarrhea and dysentery. Below is a table that lists the frequencies of two different species of Shigella: S.
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Fines are paid for 80% of all parking tickets issued. Each fine is $60. In the most recent week, 400 parking tickets have been issued. You may assume that drivers who are issued parking tickets take their fine payment decisions independently. Let X represent the number of parking tickets that will be paid (out of the 400 issued last week). What is

Question 1. (18 points) In this question, we will use the U.S. Census Data on Voting and look at correlations of voting outcomes and demographic characteristics. (a) Go to the following website and download Table 1. Make sure you work with the sheet labeled "Table 1."

I need help with the question below. The course uses R studio (free software online) for analyzing data. I can send you the data file but i don't see where i can attach it. Please advise how and i'll send the file. Thank you in advance for your time and effort to help. RDX2 X ####################### ####quality.of.life###########
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A hypothesis test was conducted concerning the proportion of drivers who use high octane gasoline. The null hypothesis was H0: p = 0.14 , the alternative hypothesis was Ha: p > 0.14 , and the P-value was 0.2588. what conclusion can you make?

30. A finite lot of 20 digital watches is 20% nonconforming. Using the hypergeometric distribution, what is theprobability that a sample of 3 will contain 2 nonconforming watches?

In the context of contamination error that affects reliability of measures, which of the following sources of contamination cannot be controlled in advance? Multiple choice question. Chance response tendency Rater Content domain Rating situation

Use the integral test to determine if the series converges or diverges \sum _{k=1}^{\infty }\frac{1}{k}-\:\frac{2}{3k-1} infinity summation ((1/k)-(2/(3k-1) k=1

Step One: Supporting Mathematical Development in Young Children: One to One Correspondence 4.08 minutes video https://www.youtube.com/watch?v=FLehpAp0OyA Step two: need to fill these. IC - 1:1 Correspondence Viewer Worksheet Name: PART ONE: Routine - A family child care provider allows children to insert paper liners into a muffin pan while

Based on the activity data, in what year, approximately, did the person die whose skull was discovered in Laguna Beach, CA? (Include A.D. or B.C.) Explain how you arrived at your answer. For full credit, all work must be shown

Alberta Diploma Question A Ferris wheel has a radius of 12 m and its centre is 14 m above the ground. A rider gets on a chair of the Ferris wheel at its lowest point and completes one full revolution in 52 s. Sketch a graph on the grid below to show the height of the rider above the ground, , over time, x , for the first 52 s. Hint: Writing an
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For the equation (x+y=4)find the slope andy-intercept of theline, graph theline, and write the equation inslope-intercept form. Write the equation inslope-intercept form.

Can you show the code to run a stepwise Logistical Regression in R for the following data. Where my dependent variable is chronic and independents variables are age, income, educat, depres, regular drink. Data set is called 'alchohol'. \f
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what does critical assumptions and constraints mean?

Diagram below models the layout At a carnival where G, R, P, C, B & E are various location on the ground. GRPC is a parallelogram (03.06 MC) The diagram below models the layout at a carnival where G, R, P, C, B, and E are various locations on the grounds. GRPC is a parallelogram. G R 350 ft 400 ft 300 ft B 200 ft P E Part A: Identify a pair of
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Please use the shared Excel data set that is linked below to answer the following question. Please show all work and Excel functions/data analysis steps if necessary. Thanks!! Use the dataset to answer the following questions. LINK: https://1drv.ms/x/s!AnlLzU2DVqFxcUTqIB4zFkdA0dU?e=rnEno7 Perform the four following prediction technique or methods:

Find the inverse of the following funtions and graph. F(x) = Sqroot(x^2-16)

Cul de los siguientes es cierto sobre el centro mdico de asuntos de veteranos de Lexington? A. Desarrollo uno de los primeros programas de divulgacin en los EE.UU B. Comenz a usar enfoques humansticos de manejo de riesgos en 1987 despus de pagar $1.500.000 dlares en juicios por dos casos de negligencia C. El centro mdico VA ha tenido un gran xito

If in the above study 75 students reported taking at least one "math intensive" class and 15 of those students said they were depressed. What is the incidence of depression in this group

Just let s = 74 is ok (a) (b) A government has 56 departments. Each department nominates 2 representatives to form a working group. 13 members are randomly selected from the working group. What is the probability that the selected 13 members are nominated by at most 12 different departments? Correct the answer to 4 decimal places. [5 marks] A
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Health Policy and Health Promotion in Advanced Nursing Practice Student will develop a Legislative Matrix based upon the specific legislators in a residential/geographical legislative district. State and Federal legislators will be identified: State Representatives, Senators, Congressman and Governor. Each legislator's assigned committees and any

Which of the following periods of the day has typically the highest average fare for air travel? Group of answer choices A. Early morning - mid morning B. Mid morning - mid afternoon C. Mid afternoon - late afternoon D. Late afternoon - early evening E. Early evening - late evening

A researcher has reported the mode of a data set. What might be the reason they chose this measure of central tendency? a. When plotted, the data set had a normal distribution b. When plotted, the data set was skewed c. When plotted, the data had a large distribution d. When plotted, the data set had one number that was more frequent than the

Question 2 The Sketchy Loner is a bank that issues 6 types of loans. In addition, to diversify its portfolio and minimize its risk, the bank invests in risk-free securities. The 6 loan types and the risk-free securities with their annual rates of return are given below: Type of Loan or Security Annual Rate of Return [0/6] Home Mortgage (rst) 12%
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Look at the data set below. How many possible values are there for this variable? What kind of variable is it? redyellowblueyellowwhiteredgreenbluegreengreenblueyellowredwhiteyelloworange

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The sequence of shade selection in authoritarian personality patient A. Value, chroma, hue B. Hue, chroma, value C. Hue, value, chroma D. Chroma, value, hue

Measures of Center Identify which measure of center to use given a scenario. When Mark was looking at his monthly utility payments, he noticed that one payment was significantly lower than all the others. Which of the following would be most affected by Mark's observation? a.)The highest monthly payment. b.)The median monthly payment. c.)The most

The results of a study of the performances of five randomly selected federal government agencies for two consecutive years are summarized in the following table (the higher the score, the better is the performance). \f
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The following table shows the results of an analysis of variance comparing three treatment conditions with a sample of n = 10 participants in each treatment. Note that several values are missing in the table. What is the missing value for SS total ? Source SSdfMS Between20xxxx F = 5.00 Withinxxxxxx Totalxxxx

integral calculus (application of integrals) ans. only refer to the region bounded by the curve y^2+4=x^2 and the lines y=2; x=0 and y=0. what is the formula for the volume of solid of revolution when revolved about the x=4? refer to the region bounded by the curve y^2+4=x^2 and the lines y=2; x=0 and y=0. what is the volume of the solid of

The table represents the separate straight-line regressions of per capita income (PCI), say y , on nonuilation nerrentane under 15 /VMG) and cav v for latin American countries and African population percentage under 15 (YNG), and say X , for Latin American countries and African countries. The summary table of the regression of y on x is formed for
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A car owner may buy insurance that will pay the full price of repairing the car after an at-fault accident, or save $12 a year by getting a policy with a $500 deductible. Her insurance company says that about 0.5% of drivers in her area have at-fault auto accident during any given year. Based on this information, should she buy the policy with the

A recent market study produced the following data on annual income level by market area: Annual Income Level Area A Area B TOTAL Up to 50K 1250 2350 3600 50K-80K 1460 1540 3000 Over 80K 265 385 650 TOTAL 2975 4275 7250 1.State the null and alternative hypotheses for a Chi Square test to determine whether annual income level is dependent of market

show work please Refer to the accompanying data set and construct a 95% confidence interval estimate of the mean pulse rate of adult females; then do the same for adult males. Compare the results. Click the icon to view the pulse rates for adult females and adult males. Construct a 95% confidence interval of the mean pulse rate for adult females.
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There is a TFR for explosives being test fired in the area from the surface to 2000ft. Can you fly in this area? Group of answer choices Yes, below 2000ft Yes, if you fly with caution No, not during the effective TFR times

Multiple regression examines ______. Group of answer choices how two or more independent variables predict or explain the scores on a single dependent variable how to create a graph that shows changes across time how one independent variable is confounded with another independent variable the prediction of one dependent variable from one

Is the standard error of the "mean difference" the same in both analyses between independent sample t test and dependent sample t test? {Alert!The standard error of the mean difference is found, in each analysis, in the last output box labeled "independent samples test" and "paired samples test", respectively.This standard error is not the same as

There are twenty stores for a grocery chain in the Mid-Atlantic region. The regional executive wants to visit five of the twenty stores. She asks her assistant to choose five stores and arrange the visit schedule. (Please show work for (c)). (a) Does the order matter in the scheduling? (b) Based on your answer to part (a), should you use

Essay#39. The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and participating in a study of risk factors for obesity. Body mass index is measured as the ratio of weight in kilograms to height in meters squared. Using the following data, a.compute the mean BMI, b.the standard deviation of BMI, c.the

The National Health Interview Survey reports that 25% of telephone users no longer use landlines, and have switched completely to cell phone use.Suppose we take a sample of size 64. 1.What is the mean proportion for the sampling distribution? 2.What is the standard error for the sampling distribution? 3.What is the probability that the sample

A researcher sent out 10,000 surveys to college students. They were asked about the amount of time they spent on Instagram, Facebook, Twitter, or any social media platform. Also, the researcher asked about the amount of sleep they had per night. The researcher only received 500 surveys back. What is the population of interest? Group of answer

Dataset: Superstore - Orders Table (Available through Tableau) Problem 1: What is the Superstore's profit per segment in each region? Type: Vertical Bar Graph Color: By region (Central = Blue, East = Green, South = Red, West = Yellow). Tooltip: Region, Segment, Sum of Profit

Two major branches of statistics are: _____________________ and ______________________ b. The four basic sampling methods are: ______________, ______________, ______________, and _______________

You intend to conduct a goodness-of-fit test for a multinomial distribution with 8 categories. You collect data from 81 subjects. What are the degrees of freedom for the2 distribution for this test? d.f. =___________________

Two tanks hold a total of 46 gallons of a toxic solvent. One tank holds 7 gallons more than twice the amount in the other. How many gallons does each tank hold? 19

Model your questions after the ones shown in Figures 6.1 and 6. 2 of your textbook. Include at least 3 positive and 3 negative examples.

You won a bid to build ten roller coasters for a customer. The first roller coaster was completed in 600 hours. The crew working on the project have demonstrated an 75% learning curve. a.How long should it take the same crew to finish the last nine roller coasters? b.There are 5 crewmembers working on the project. The average labor cost per hour

ANOVA is a hypothesis testing technique used to compare the equality of means for two or more groups; for example, it can be used to test that the mean number of computer chips produced by a company on each of the day, evening, and night shifts is the same. Give an example of an application of ANOVA in an industrial setting.

Please help me understand this question. Please Explain in detail and in clear format. 3) You measure the length of 5 radish seedlings at 7 days and 10 days and get the following results in mm (do NOT use R except for part (d)): seedling #: 1 2 3 4 5 37' s 5 days: 30 20 38 49 32 33.8 10.686 7 days: 35 27 46 58 34 40 12.145 difference: -5 -7 -8 -9
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match all the Patterns with composite functions Task 2: Recreate Pattern 2 in the screen! [1T] 12 + #
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Question 2 i 20 marks This question is intended to assess your understanding of the Galton-Watson branching process. You should be able to answer this question after working through Part] of Book 3. (a) Suggest a random phenomenon, different from any mentioned in Part I of Book 3, for which the Galton-Watson branching process might provide a
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Suppose that Shen is a diligent hard-working fourth-year college student. One Wednesday, he decides to start the day by working through 250 practice problems to study for the informatics class. Using a table to track his progress throughout the day, he notices that as the hours pass, it takes him longer to solve the problems. Time Total Problems

X and Y are exponentially distributed and independent with densities - f (x) =-exp -X = - exp a U ( x ) f () y b U (y ) Obtain P > C X+Y
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5. Third-degree Burns. The data for this exercise, discussed in Fan et al. (1995), refer to 'n, : 435 adults who were treated for third-degree burns by the University of Southern California General Hospital Burn Center. The patients were grouped according to the area of third-degree burns on the body. For each midpoint of the groupings \"log(area
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The test to evaluate government actions that may silence speech or expression when there is eminent harm that the government has the power to prevent is called the eminent threat test the bad tendency test the clear and present danger test the Smith test the probability of harm test

Consider the system of figure below. Suppose that components are functioning. Independently and the probabilities that components C1 , C2 , C3 , and C4 are functioning : 0.9 , 0.85 , 0.75 , and 0.7 respectivel The probability that system is functioning given that component C1 is not functioning is

Some of the 210 TAs are organizing a tournament. However, none of them feels like figuring out a tournament bracket ahead of time. Cayden realizes that they can get away with being lazy and not use a tournament bracket at all, suggesting the following strategy instead: Everyone stands in a circle facing inwards. Each person flips a fair coin. If

A bank features a savings account that has an annual percentage rate ofr=2.9% with interest compounded weekly . Jamal deposits $4,000 into the account. The account balance can be modeled by the exponential formulaS(t)=P(1+r/n)^nt, whereSis the future value,Pis the present value,ris the annual percentage rate,nis the number of times each year that

Annie and Alvie have agreed to meet between 5:00 P.M. and 6:00 P.M. for dinner at a local health-food restaurant. Let X = Annie's arrival time and Y = Alvie's arrival time. Suppose X and Y are independent with each uniformly distributed on the interval [5, 6]. Annie and Alvie have agreed to meet between 5:00 P.M. and 6:00 P.M. for dinner at a
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are name and phone number categorical variables and age group and annual income numerical variables

Practice Problem 1 Practice Problem 1 For the business rules given below, draw your dependencydiagram and then ERD in Visio. Business Rules: The public safety office at a large public university maintains a list of parking tickets issued to vehicles parked illegallyon the campus. Table 1 (see below) shows a portion of this list.Assume sample data
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please help A sociologist randomly selects 376 females 15 to 19 years old and asks each to disclose her family structure at age 14 and whether she has had sexual intercourse. Use the results in the accompanying table to complete parts (a) through (f) below. Click here to view the data table of family structure and sexual activity; Click here to
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ORGL-3321-KV3-Data Driven Dec-Making -CBE Competency 4 Post-Test Competency 4 Post-Test Post Tests Content For this post-test you will look at external data and discuss how these data might be utilized by South Texas College in the decision making process. Use the link below to access the United States Census Bureau Data for Hidalgo and Starr

3 Modify the quicksort function so that it calls insertion sort to sort any sublist whose size is less than 50 items. Compare the performance of this version with that of the original one, using data sets of 50, 500, and 5000 items. Afterwards, adjust the threshold for using the insertion sort to determine an optimal setting based on your findings
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A medical researcher interested in asthma symptoms wanted to know how symptoms were affected in dry versus humid conditions. The researchers recruited 18 asthma patients to spend four weeks under two conditions: sleeping with a dehumidifier for two weeks to create a "dry" environment and sleeping with a humidifier for the remaining two weeks to

Identify five factors that determine the choice of the research method to use.

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Does the point (4,2) lie on, above, or below the line y=1/3x+ 1? (I got B as my answer, if you could please show your steps i would gladly reciprocate your hard work by giving an immediate thumbs up/ like, thank you very much!) 3. Does the point (-4, 2) lie on, above, or below the line y = --r + 1? (a) On the line (b) Below the line (c) Above the
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If y is the dependent variable and is the independent variable. And if the sum of the cross product of the deviations is (x- x )(y- )=83 , and also if 3.62 and 3.34 are the standard deviations for the independent and dependent variables, respectively, and we have a sample size of 14 what is the correlation coefficient between X and y ? Note: 1 -

After collecting the data, Shawn finds that the monthly number of take-out orders at a restaurant is normally distributed with mean 132 and standard deviation 6 . What is the probability that a randomly selected month's number of orders is more than 150 ? Use the Empirical Rule to compute the probability. Provide your answer below

The North American Mathematics Challenge for high school students was held last month. The challenge consists of two rounds. The difficulty of round 1 is at the same level as last year's, and the average round 1 score of contestants who took this challenge last year was 85. Given that the contestants this year are generally younger and from lower

1. Calculate the ventilation factor for a room with the following dimensions: 5m x 5m x 3.5 m.There is one vent in the room measuring 1.5m high by 4m wide. 2. Calculate the ventilation factor for a room with following dimensions: 5m x 5m x 3.5 m.There are two windows, each measuring 1.5 m high by 1 m wide and a door measuring 2.5 m high by 1.2 m

In a taste test, a random sample of 72 students at St. Kate's were asked to distinguish between a drink that contained 100% grape juice and a drink containing only 10% grape juice. A 95% confidence interval for the proportion of students at St. Kate's who can correctly identify the 100% grape juice was (0.54, 0.76).The best interpretation of this

Column n Mean Std. dev. 13 24.615385 4.2138356 Sample of total population of 18,944 g) Does the mean calculated in (e) come from a normal sampling distribution? Check all three conditions of the Central Limit Theorem using one complete sentence for each condition to answer this question.

Which of the following is true of an interval scale? Multiple choice question. It is typically used to measure test scores in standardized tests. It can be used to make statement about the ratio of scores. It can only show relative differences among objects. It represents the absolute levels of an attribute being measured

A distribution is given as X~ Exp (0.65). A) What is the cumulative distribution function? P(X

What does it mean to say that Indigenous people need to be self-determining and to have some control over community services and programs? What strategies might be implemented to support this

Hi. I need help with the example below: A manufacturer of sprinkler systems used for fire protection in office buildings claims that the true average system-activation temperature is 130 . A sample of n=9 systems, when tested, yields a sample average activation temperature of 131.08 F with a standard deviation 1.5F. Suppose the distribution of

please help The table to the right contains observed values and expected values in parentheses for two categorical variables, X and Y, where variable X has three categories -\"\" X3 and variable Y has two categories. Use the table to complete parts (a) and (b) below. 34 40 48 .(3455) (42.31)(45.13) 15 20 16 (14.45) (17.69)(18.87) (a) Compute the
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please help A consumer products testing group is evaluating two competing brands of tires, Brand 1 and Brand 2. Tread wear can vary considerably depending on the type of car, and the group is trying to eliminate this effect by installing the two brands on the same random sample of 8 cars. In particular, each car has one tire of each brand on im
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A company is doing a hypothesis test on the variation in quality from two suppliers. Both distributions are normal, and the populations are independent. Use a = 0.01. A sample of 20 products were selected from Supplier 1 and a standard deviation of quality was found to be 4.8887. A sample of 14 products were selected from Supplier 2 and a standard
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I need help with this question, I got the interval of convergence between -1 and 1 (not including the boundaries) but my homework websites says it's wrong. (1 point) Find the interval of convergence for the given power series. 2 (x - 9)\" n(10)\" n=1 The series is convergent from x = , left and included (Y,N): to x = , right end included(Y,N)
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QUESTION 4: Predicting Quarterly Tourist Arrivals [1+1+1+2.5+1+1+2+1+1.5+1+1+1=15 marks) The tourism industry in Australia is to some extent subject to enormous seasonal variation. The Australian Bureau of Statistics (ABS) publishes various information on tourism-related variables. The quarterly short-term inbound tourist arrival numbers to
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Individuals filing federal income tax returns prior to March 31 received an average refund of $1056. Consider the population of "last-minute" filers who mail their tax return during the last five days of the income tax period (typically April 10 to April 15). A. A researcher suggests that a reason individuals wait until the last five days is that

Se sabe que la msica y matemticas tienen una relacin cercana. En la Escuela Nacional de Msica se impartieron cursos de matemticas a ciertos estudiantes para determinar si con ello se obtiene un mejor desempeo musical. A partir de los siguientes datos y con base en la frmula, se calcul el coeficiente de correlacin de Spearman que result igual a

Comparing the means and standard deviations for students to those of their grandparents what do these statistics tell you about the size of families relative to the past. if the mean is 1.4 for students and the standard deviation is 1.08 and the mean for grandparents is 3 and the standard deviation is 2.2

if a baby weighed 8lbs. 13oz. at birth and 8lbs. 6oz. at discharge, what is the percentage of weight loss?

El desarrollo de las pginas permite la aplicacin de diferentes metodolgicas para su creacin, que al mismo tiempo logre ser vista por el usuario objetivo, al tomar acciones concretas (tcticas), que permitan la obtencin de los objetivos finales dentro del procedimiento en una pgina web, Qu debe tomar en cuenta el desarrollador? . Seleccione una:

3. Solve the following ideal gas law problems. Be sure to show all your work including the units within your work. (8 points each) a. What volume would be occupied by 15.5 mol of a gas at 52.00 C with a pressure of 151 kPa? b. What pressure is exerted by 8.26 g of He gas contained in a 29.9 L vessel at 6.03.C
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Renee gives birth to her son at 32 weeks gestation. However, her doctor is optimistic about the baby's outcomes because the baby is not "small for date." What does the doctor mean by this? He weighs about the same as the average baby born at this time of year. He weighs significantly less than an average full-term baby. He weighs about the same as

Convenience Sample makes: Group of answer choices it easy for the researcher to collect data but the data may not be a good representation of the population. it difficult for the participants. data collection valid. it challenging for the researcher to collect data

Determine the sample size n needed to construct a 90 90 % confidence interval to estimate the population mean when sigma equals = 58 58 and the margin of error equals 7

Your study reports that among sexually active female patients those who do not take birth control pills every day are more likely to get pregnant than those who take birth control pills every day (RR=8.4, p <0.05). You know this means:

a. Create a stacked-bar chart with locations along the vertical axis. Reformat the bar chart to best display these data by adding axis labels, a chart title, and so on. b. Create a clustered-bar chart with locations along the vertical axis and clusters of tasks. Reformat the bar chart to best display these data by adding axis labels, a chart

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