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Mathematics Questions and Answers June 08, 2022

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can somebody help me Homework: Module 1 HW 2 (Sec 2.2-2.5) Save Score: 0 of 1 pt 27 of 56 (25 complete) HW Score: 37.19%, 23.8 of 64 pts 2.5.25-T Assigned Media Question Help The data show the distance (in miles) from an airport of a sample of 22 inbound and outbound airplanes. Use technology to answer parts (a) and (b). a. Find the data set's
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Quelle est l'entendue pour l'ensemble de scores suivant? Scores: 5,7,9,15 5 points 15 Points 10 ou 11 points 4 points

FFind the area of the ttriangle with A = 47 degrees, AB = 19ft, AC = 32 ft? Answer Choices: 222.33 square feet 232.45 square feet 189.76 square feet 250 square feet

A presidential candidate's aide estimates that ... A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at most 65%. If 192 out of a random sample of 270 college students expressed an intent to vote, can the aide's estimate be rejected at the 0.05 level of
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A ______ ANOVA is an extension of a related-samples t-test and measures each person at least 3 times to look for a change in the dependent variable. Group of answer choices repeated-measures one-way factorial between-subjects

The researcher in this scenario has decided re-do the analyses. They have kept their test as a two-tailed test but have now made the alpha .01. Which of the following statements is TRUE? Group of answer choices The researcher will be able to draw a different conclusion about their test if the alpha is .01 compared to when it was .05. The

Hypothesis Tests A magazine claims that its readers have an average annual income of $43,725 with a standard deviation of $3,856.You randomly sample on 27 of the magazine's readers and an average income of $38,251.Determine if the income of the readers is significantly less than the income claimed by the company using= 0.01 and theprob-value

Luca conversa con una compaera de su clase de astronoma. Completa los dilogos con formas de llegar y leer. carla: Hola, Luca. A qu hora (t) a la universidad esta maana? luca: Hola. a las ocho y media. Y t? carla: Mi compaera de apartamento y yo no hasta las nueve y media porque el autobs tarde. luca: Ay, qu mala suerte! Oye, (t) el artculo sobre

Find the z-values corresponding to the given measures of position, assuming that Z is a continuous random variable that follows a standard normal distribution. a. The range of values of the top 11% of the data. z>____ b. The range of values of the middle 84% of the data. ____ < z

sir i am stuck for this question 3. (2 points) Consider the following integral: e cdr. (a) Why is this integral improper? Answer: (b) Find the value of this improper integral, if it converges. Solution
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Use the product rule to find the derivative of j(x ) = (5x ) (6x- - 3). If we set f(x) = 5x* and g(x) = 6x- - 3, then f' (x) = and g' (x) = Thus j' () = . (6x2 - 3) + . (5x3). Simplifying, we have j' (x) =If f(x) = (7x - 4) (4x + 5), find: f' (x) = Suggestion: Verify using product rule and by simplifying f (x) f' (1) = Submit Question\fUse the
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Math question Find zw. Leave your answer in polar form. z=8(cos pi/11 + i sin pi/11) w=9(cos pi/12 + i sin pi/12) zw= ? ? ?

The purpose of my assessment is to: Identify and articulate a business opportunity/challenge Identify the current and possible data/information sources that can be used to inform the business planning process Map the data/information sources (internal and external to your organisation) to the aligned business challenge/opportunity. Can you help

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Which of the following statements about selection bias in epidemiological studies are true? (Mark all the apply) Question 8 options: Selection bias is in operation any time the study population is unusual - like a study of left-handed, female epidemiologists Selection bias occurs when the chance that we will include a particular subject is not

Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a "need for closure scale" to a group of students enrolled in an introductory psychology course. The "need for closure scale" has scores ranging from 101 to 201. For the 79 students in the highest

(3 marks) a. ?(x) =- 2(x + 2) (x - 1) Expectations O End Behavior is worded for polynomials as Quadrant Q "-Q' Using Roman Numerals Any intercepts must be given in coordinate form End behavior needs justification such as leading coefficient & degree Multiplicity should explain behavior around x-intercepts
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Which statements apply to the concept of mathematical songwriting? Multiple select question. One Direction is an example of a manufactured group that utilizes mathematical song writing. Popular music is increasingly a direct result of individuality. Songs are specifically written to be commercial hits. A beat is composed after the songwriter

Why is this the appropriate test statistic for this scenario? Is this a one- or two-tailed hypothesis test? Explain. State the null and alternative hypotheses here ? \f
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Unidad III. Actividad #3: Muestreo Contenido de Actividades Metodologicas El muestreo El muestreo es indispensable para el investigador ya que es imposible incluir a todos los miembros de una poblacin debido a problemas de tiempo, recursos y esfuerzo. Al seleccionar una muestra lo que se hace es estudiar una parte o un subconjunto de la poblacin,

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how do you solve a problem like this? Thank you in advance. A data set about speed dating includes "like" ratings of male dates made by the female dates. The summary statistics are n = 183, x = 5.51, s= 1.91. Use a 0.05 significance level to test the claim that the population mean of such ratings is less than 6.00. Assume that a simple random
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A machine that manufactures automobile parts produces defective parts16 % of the time. If8 parts produced by this machine are randomly selected, what is the probability that fewer than3 of the parts are defective?

Which of the designs below would be best suited to ANCOVA? a. Participants were randomly allocated to one of two stress management therapy groups, or a waiting list control group. The researcher was interested in the relationship between the therapist's ratings of improvement and stress levels over a 3-month treatment period. b. Participants were

A certain virus infects one in every 250 250 people. A test used to detect the virus in a person is positive 70 70 % of the time when the person has the virus and 15 15 % of the time when the person does not have the virus.(This 15 15 % result is called a false positive .) Let A be the event"the person isinfected" and B be the event"the person

hi , i am looking for answer the question below .. can you please help me Sinusitis and Antibiotics Researchers studying the effect of antibiotic treatment for acute sinusitis compared to symptomatic treatments randomly assigned 166 adults diagnosed with acute sinusitis to one of two groups: treatment or control. Study participants received either
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The test statistic for testing equality of proportions Multiple select question. is a z score assumes when samples are large that p1 - p2 is normally distributed. is a t statistic. uses a pooled proportion to calculate the standard error

O Counting and Probability WOOD 35 Nathan Computing expected value in a game of chance Greg has a bag with 8 balls numbered 1 through 8. He is playing a game of chance. This game is this: Greg chooses one ball from the bag at random. He wins $1 if the number 1 is selected, $2 if the number 2 is selected, $3 if the number 3 is selected, $4 if the
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Do we use the sample mean as the measure of location most of the time in practice and in statistical inference? Why? Explain

A presidential candidate's aide estimates that... A presidential candidate's aide estimates that, among all college students, the proportion ,0 who intend to vote in the upcoming election is at most 65%. If 175 out of a random sample of 260 college students expressed an intent to vote, can the aide's estimate be rejected at the 0.05 level of
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In a recent study students wereasked: "Do you plan to attend GraduateSchool?" Among 21,334 responses, 68% were"yes." Use a 0.10 significance level to test the claim that more than50% of students plan to attend Graduate School. Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is ___ (Round to two

Name four (4) social media data sources (i.e. categories; for instance Facebook and IG are one category) to collect fan data to understand fan preference & accordingly produces content.

Some Americans support banning TikTok due to concerns about its potential threat to national security, while others believe that banning TikTok restricts people's right to express themselves and oppose the ban. A group of economists wanted to investigate if American adults in general would support or oppose banning TikTok. They surveyed 1,006

1) The marginal cost for printing a paperback book at a small publishing company is c(p) = $0.019per page where p is the number of pages in the book A 720-page book has a $19.13 production cost. Find the production cost function c(p) Hint: Marginal cost is the derivative of cost. c(p) ______ 2) A ball is thrown upward from a height of 1.9 m at an

15) There are several reasons for autocorrelation one of them is : E. Model specification error. F. Minimum variance. G. Park test. H. Unbiased estimators. 16 The Eviews output below shows: Breusch-Godfrey Serial Correlation LM Test: Null hypothesis: No serial correlation at up to 1 lag F-statistic 26.31224 Prob. F(1,25) 0.0000 Obs*R-squared

A team of researchers is interested in whether people who know someone who was ill with COVID-19 are more willing to wear masks in public. They have 1,000 people, all of whom do know a COVID-19 victim, fill out a survey that asks "How often do you wear a mask in public?". on a 7-point scale from 1 = never to 7 = always. They have another 1,000

Schadek Co. asked you to analyze their sales orders for the years 2018 and 2019 to see how well their sales force is working, and if they increased the sales orders or not.Use the data set in OnlineHW.xlsx. Worksheet ORDER.Sales orders of randomly selected customers (Schadek is a B2B co) are listed for 50 states. 1)[25 pts.] At the 0.05

Find values of the trigonometric functions of the angle (in standard position) whose terminal side passes through the given point. K (3,2) O A. sin = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) O B. Undefined Select the correct choice below and. if necessary, fill in the answer box
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question help please finding the p value i Excel File Edit View insert Format Tools Data Window Help 0 Am . {a} E (5 . i=3 Assignment'LDala Home Insert Draw Page. Layout Formulas Data Review View _ Tell me Lilv D11" THE CENTRE TESTS EXACTLY 20 DRIVERS IN ANY GIVEN WEEK We will test if the given data fits a Binomial distribution. The data
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It is claimed by the Caloric Control Council that the typical adult consumes an average of 3000 calories during the Thanksgiving holiday.Believing this value is too high, a nutritionist surveys a random sample of 95 adults about their Thanksgiving eating habits, and each adult in the sample keeps track of the number of calories consumed during the
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(H,C) k1 =(7- 2) mod 26 = 5 =>F (F,R)k2 = (5 - 17) mod 26 = 14 =>0 (P,Y)k3 = (15 - 24) mod 26 = 4=>R (T,P)k4 = (19- 15) mod 26 = 17=>E (V,T)k5 = (21 - 19) mod 26 = 2=>C (O,O)K6= (14 - 14) mod 26 = 0=>A (D,L)K7= (03 - 11) mod 26 = 18=>S (H,O)K8= (7 - 14) mod 26 = 19=>T (O,G)K9= (14 - 06) mod 26 = 8=>I (L,Y)K10= (11 - 24) mod 26 = 13=>N (Z,T)K11=

Do these data represent cross-sectional or time series data? Go to www.zillow.com and type a city of your choice (e.g., Houston, New York, Los Angeles, etc.). Find data for five single-family homes selling in your chosen city. Structure the data in a tabular format and include the selling price, the number of bedrooms, the number of bathrooms, the

A randomsample of 11 students produced the following data, where x is the hours spent per month playing games, and y is the final exam score (out of a maximum of 50 points). The data are presented below in the table of values. x y 14 46 15 49 16 37 17 42 18 37 19 31 20 25 21 23 22 20 23 15 24 12 What is the equation of the regression line? Select

Answer the following question D Question 18 1.5 pts A survey was conducted of the 50 houses located closest to the school. Students observed what type of roofing materials were used on each house. Here is a bar chart that displays the results of the survey. 350 300 250 Frequ 200 150 100 50 T T Asphalt Wood Shingle Ceramic Tile Metal Shingle
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Numerical integration techniques can be used to approximate a definite integral as long as the error is acceptably small. True or false?

An appliance manufacturer stockpiles washers and dryers in a large warehouse for shipment to retail stores. Sometimes in handling them the appliances get damaged.Even though the damage may be minor, the company must sell those machines at drastically reduced prices. The company goal is to keep the proportion of damaged machines below 5%. One day

9. Suppose P and Ft are atomic propositions. Show that P Ft is equivalent to its oontrapositive and that ==:=- Ft is not equivalent to its converse. For the latter, illustrate with an example using a language by choosing P and Ft such that P==::- Ft is true and its converse is not
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The production of wine is amultibillion-dollar worldwide industry. In an attempt to develop a model of wine quality as judged by wineexperts, data was collected from red wine variants of a certain type of wine. A sample of 12 wines is given. Develop a simple linear regression model to predict winequality, measured on a scale from 0(very bad) to

Thirty-threesmall communities in Connecticut (population near 10,000 each) gave an average of x = 138.5 reported cases of larceny per year. Assume that is known to be42.1cases per year. (1) Find a 90% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your

Do the data for females and males have outliers? Explain your answer. \f
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D Suppose you are interested in buying or selling products through online auctions. What circumstances are good for buying? What circumstances are good for selling? Several years ago, 488 eBay auctions ofa popular model of Dell Latitude were recorded over a three- month period. The data (in the worksheet labeled "Data") include: (1) winning bid:
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Use the given minimum and maximum data entries, and the number of classes, to find the class width, the lower class limits, and the upper class limits Given minimum =14 maximum=137 Number of classes n=8 Class width= Class width= The classes are Class Lower limitUpper limit

Which of the following are true of criterion-related validation of measures used in staffing? (Check all that apply.) Multiple select question. It requires a sample size of 50 at an absolute minimum. It uses a concurrent or a predictive validation design depending on whether the sample consists current employees or job applicants. It offers

You are still working at the investment company and trying to predict profitability using Earnings per Share. Your boss liked your regression model, but wants you to do some follow-up analysis on just how much the model can be trusted before it can be put in use. Create residual plots of your explanatory variables to see if any regression
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When considering the best levels of self-confidence for athletes, we can say that it is better if the athlete a. is overconfident b. lacks self-confidence c. is both overconfident and underconfident d. is neither over confident nor lacks self-confidence

Round 2,461,192 to the nearest: a. Hundred thousand b. Hundred c. Thousand

Assume that a procedure yields a binomial distribution with nequals4 trials and a probability of success of pequals0.10. Use a binomial probability table to find the probability that the number of successes x is exactly 1. LOADING... Click on the icon to view the binomial probabilities table. Question content area bottom Part 1 Upper P left

Homework Question 1 Imagine that you are writing a grant proposal in which you plan to randomly assign lowiperforming third grade children to receive one of two types ofafterschool tutoring interventions: either a meaningfocused intervention (practicing what the meaning; of word parts of are) or a decodingifocused intervention (practicing how to
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The weights of the contents of cans of tomato sauce produced by a company are normally distributed with a mean of 8 ounces and a standard deviation of 0.2 ounces. a.What percentage of all cans produced contain more than 8.4 ounces of tomato paste? b.What percentage of all cans produced contain less than 7.8 ounces? c.What percentage of cans

Given each scenario, identify an appropriate type of chart or plot that you would use to determine the answer. ( e.g . pie chart, scatterplot, etc .) a)We want to understand distribution of the cholesterol level for 100 males aged 20-30. b)Is the correlation between daily outside temperature and amount of natural gas used for heating, positive or

Hello, I have answered the homework question below for my statistics but am not confident if I have it correct. Can you please review. A researcher wishes to estimate the number of days it takes an automobile dealer to sell a Chevrolet Aveo. Sample of 50 cars had a mean time on the dealer's lot of 54 days. Assume the population standard deviation
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Which ear/modality is responding when a "shadow curve" is evident on an audiogram? Group of answer choices only the bone conduction of the test ear none of the other responses is correct the bone conduction of the non-test ear the combined air and bone conduction of the test ear

help me please ) Convince Me! rows Why is the product of 4 x 5 less than each factor? 5 : 1 of 00 columns
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Briefly explain two ways to address confounding in the design stage of a study.

42. A ferritin test is a popular test to measure a person's current iron stores. In women, ferritin is approximately normally distributed with a mean of 89 ng/ml and a standard deviation of 23 ng/mL.If 50 women are tested, what is the probability that the mean ferritin exceeds 90
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How is an identity verified with trigonometry? Verify the identity. tan 22x+ c0322x+ sin 22x= sec22x To verify the identity, start with the more complicated side and transform it to look like the other side. Choose the correct transformations and transform the expression at each step. tan 22x + cos 22x + sin 22x = :| v =sec22x V
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Calculation, presentation of work on excel is not allowed Question # 1 Select a random sample of weights of 30 students from the Excel data file attached for Question # 1 and past on word file like following table \f\f\f\f
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Find the critical value of F for DOF=(3,16) and area in the right tail of .05.

Construct the cumulative frequency distribution for the given data. White Blood Cell Count of Females Frequency 2.0-3.9 5 4.0-5.9 56 6.0-7.9 46 8.0-9.9 29 10.0-11.9 6 12.0-13.9 0 14.0-15.9 1 . . . Question content area right Part 1 White Blood Cell Count of Females Cumulative Frequency Less than 4.0 enter your response here Less than 6.0 enter

The La Ventana Window Company manufactures original equipment and replacement windows for residential building and remodeling applications. In a cutting process for a certain window model, specifications call for a dimension of 25.50 inches. If the dimension is larger than 25.52 inches, it will be too tight in assembly; and if it is 25.48 inches
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Choose the one answer that represents a correction that should be made to the sentence. If no correction is necessary, choose "no correction is necessary." Note that CBP is used as an acronym for Customs and Border Protection. Advanced targeting information is crucial at certain ports, where the volume of packages arriving each day makes

A wildlife service wishes to estimate the mean number of days of hunting per hunter for all hunters licensed in the state during a given season. What minimum number of hunters must be included in the sample in order to estimate the mean with a bound on the error of estimation equal to2hunting days with probability 0.95? Assume that data collected

Hans Langenscheidt is a German historian studying various demographic characteristics German immigrants and their influence on colonial America in eighteenth century. Although accurate records are found rarely, some records showed that the cost of an adult fare (one freight) from Rotterdam to New York was approximately $2000 in today's currency.
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10.Given that p(A c ) = 0.45, events A and B are independent, p(A or B) = 0.8.Find p(B)

1.Amicrocomputermanufacturer has developed a regression model relating his sales (y in $10,000s) with three independent variables. The three independent variables are price per unit (Price in $100s), advertising (ADV in $1,000s) and the number of product lines (Lines). Part of the regression results is shown below. ANOVA df SS MS F Regression

Which of the following distinguish systematic random sampling from simple random sampling? Select all that apply. Multiple select question. Simple random sampling requires fewer random numbers. Systematic random sampling is quicker and easier. Simple random sampling is more prone to bias. Systematic random sampling uses only one random choice,

Prove that if q^2 is divisible by 3, then q is divisible by 3. I don't know how to prove that.

Determine the number of ways the 8 members of the Junior Jazz Band can stand in a line if Val must be first, Tim sixth, and Tricia last. a. 56 b. 40230 c. 32768 d. none of above

2. The amounts of money won by the top ten finishers in the recent Daytona 500 are listed below. $2,194,246$464,084$164,096$199,209$438,834 $613,659$142,884$240,731$145,809$290,596 a) Find the mean and median winnings.Round to the nearest dollar. b) Count how many data values are below and above the mean. c) Count how many data values are below

Null Hypothesis : The mean scores of students in a class is equal to 65. Alternative Hypothesis : The mean scores of students in a class is not equal to 65. Testing Approach: Here we are testing a null hypothesis against a two tailed alternative hypothesis. We will use a one sample t test to check whether the mean score of students in a class is

In a survey on study habits, students at a local college were asked whether they listened to music while studying. The following table was constructed. Listens to music Does not listen to music Male 56 23 Female 15 35 Find the probability that a randomly selected student is female or does not listen to music while studying.

A random sample of adults is selected, and their height X (in cm) and their weight Y (in kg) are measured. The correlation between height and weight is calculated to be r = 0.59. What would be the value of the correlation if height had instead been measured in inches (1 cm = 0.4 inches) and weight had instead been measured in pounds (1 kg = 2.2

On the following pages you will find responses from a variety of teachers who were asked the question, "What major factors lead you into teaching?" Your task is to read over the responses and determine specific themes that seem to predominate. Identify at LEAST four themes and include at least 5 quotes for each of those themes (for a total of 20).

The five-number summary of the hourly wages ($) for sales managers were prepared for management at a small company. Suppose they later figured out that there had been an error and that the correct highest hourly wage for sales managers was $71.74 instead of $67.11 as previously reported. With the new change, by what amount do you expect the IQR to

If the researcher has set the alpha for the test described in Question #6 and #7 at .05, they should: Group of answer choices reject the null hypothesis fail to reject the null hypothesis abandon their research question try again with a different alpha

Approximately 56% of body weight is supported by the fifth lumbar vertebra. How much stress is present on the 22 cm2 surface area of that vertebra in an erect 756 N man? (Assume that the vertebral surface is horizontal.) *Stress = Force/Area

Se requieren MSDS para mezclas en las que algunos ingredientes son peligrosos y otros no? HURM 552

Write the following English phrase using math notation. 81 divided by 21. Question content area bottom Part 1 "81 divided by 21" written as an expression in math notation is enter your response here. (Type an integer or a fraction. Do not simplify.)

What can we say about the line height in the following example? What can we say about the line height in the following example? It is less than 200% It is less than 10% We don't have enough information to quantify it. It is less than 100%

Consider a brand of coffee. The weight of a pod of coffee this brand makes has mean 42.05 grams and standard deviation 0.025 grams. Using the central limit theorem and the normal distribution, what is the probability that the mean weight of 25 pods of coffee is less than 42.035 grams? Round your answer to 4 decimal places

You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 1 5 11 16 26 36 y 39 47 73 100 150 200 Complete parts

Determine the (1) graph, (2) initial and terminal points, (3) orientation, (4) the derivative / , and (5) the Cartesian equation of the parametric curve defined by () = 3 + sin (), () = 2 + cos(), where 2. Show your work.

Find the critical value zc necessary to form a confidence interval at the level of confidence shown below. c = 0.91

A live for 1/. -21 Simplify your answer as much as possible. 1 =
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When determining the equation of the regression line is it helpful to construct a scatter plot? Don't use regression lines when there is significant correlation to predict values. Do extrapolate!! For example, if the data is from 10 to 60, do predict a value for 400. Stay within the range of the data. Do not extrapolate!! Calculate a prediction

please answer and thanks Two cards are drawn without replacement from an ordinary deck, find the probability that the second is not a king, given that the first is not a king. What is the conditional probability? (Type an integer or a simplified fraction.)
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In this method of field research information is gathered by asking each person interviewed to suggest additional people for interviewing. Question 1 options: a) Hawthorne effect b) snowball sample c) random sample d) convenience sample

Which of the following measures of central tendency might be "off-center" (away from the "true" center) given a skewed distribution due to outliers? Mean O Mode O Median O Standard deviation

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