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Mathematics Questions and Answers September 22, 2021

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please also share explanations for each below 7. [10 Points] Conditional Probabilities. This is a simple exercise testing your understanding of the definitions. For each of the following questions carefully define (1) the sample space and (2) the event under consideration. Then (3) determine the probability. For full credit, you will have to
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60. Which of the following is the correct null hypothesis for a repeated-measures t test? a.M D = 0 b. D = 0 c. 1 = 2 d.M 1 = M 2 61. A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____. a. 9 b. 19 c. 20 d. 39 62. A repeated-measures study and an independent-measures study both produced a t

The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a standard deviation of 1.90. Find the probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase. Is this outcome unusual? Homework Help: 4VA. Calculating normal

Please provide step-by-step instructions: \f
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A survey of 586 citizens found that 335 of them favor a new bill introduced by the city. We want to find a 95% confidence interval for the true proportion of the population who favor the bill. What is the lower limit of the interval? Enter the result as a decimal rounded to 3 decimal digits. Your Answer:

If the probability that it will be rainy is 0.6, and the probability that it will be windy is 0.5, and the probability that it will be either windy or rainy is 0.9, what is the probability that it will be both rainy and windy? Hint: Use the fact that P(A or B)= P(A)+ P(B)- P(B) -P(A and B).

The set of (lowercase) vowels in the English alphabet, not including y

please also share explanations for each below 4. [10 Points] An urn contains 15 red balls and 10 blue balls. Three balls are drawn at once. (a) What is the sample space for this experiment? (b) What is the cardinality of the sample space? (c) What is the probability of each of these events? i. All three balls are red. ii. Two balls are red and one
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Round off each of the following number to three (3) significant figures : 56.855 m, 0.002282 g , and 8 s

The statistician would like to use the above sample information and the appropriate statistical method to determine whether Bill is correct in his assessment of the severance package. Your report should have the following qualities: Your report must be in a genuine report format with problem definition, analysis and final conclusion. All important

2. Attila extracted thousands of pounds of gold coins from the Roman emperors in tribute True 3. The basilic_ of Lant Peter in Rone bu It _y Emperor Constantine, was larger than the Eastern Roman L'm. 'res most famous Church Hug a boy lic True C iden.Stations (1 Jr 2 =en el:ces): 1. Khusro I Anosherwan: Sasanian King of Kings of Iran 2.
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i am currently stuck on this problem can anyone help me out with this please and thank you. This Question : 3 pts 18 of 20 This Test : 100 pts possible 2 Question Help Determine the margin of error for a confidence interval to estimate the population proportion for the following confidence levels with a sample proportion equal to 0. 36 and n = 125
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The board of a major credit card company requires that the mean wait time for customers when they call customer service is at most 3.00 minutes. To make sure that the mean wait time is not exceeding the requirement, an assistant manager tracks the wait times of 45 randomly selected calls. The mean wait time was calculated to be 3.40 minutes.

The quality assurance engineer of a television manufacturer inspects TVs in lots of 100. He selects 6 of the 100 TVs at random and inspects them thoroughly. Assuming that 8 of the 100 TVs in the current lot are defective, Determine the probability that the number of defective TVs obtained by the engineer is (5 Marks) i. exactly one. ii. at most

Let n be a positive integer. Show that there is a linear code C F 5 2n such that C =C.

A normal curve: Select one: O a. Does not often occur in nature. O b. Is bimodal . O c. Is skewed . O d. Is also called a bell-shaped curve. When a curve has a tail to the right but no tail to the left, it is said to have a: Select one: O a. Positive skew. O b. Negative skew. O c. Bimodal distribution. O d. Normal curve. Measures of central

A student is interested in becoming an actuary. They know that becoming an actuary takes a lot of schooling and will have to take out student loans. They want to make sure the starting salary will be higher than $55,000/year. They randomly sample 30 starting salaries for actuaries and find a p-value of 0.0392. Use = 0.05. Should the student pursue

A shelf holds 12 books. Eight are fiction, and the rest are nonfiction. Each is a different book with a unique title. The fiction books are numbered one to eight. The nonfiction books are numbered one to four. Randomly select one book. Let F = event that book is fiction Let N = event that book is nonfiction What is the sample space? a. {F1, F2,

Realiza una presentacin con un minimo de 7 slides donde seales la estructura y funcionamiento de los canales de distribucin de una de las siguientes empresas: Coca Cola, Bimbo, Lala o Grupo Sigma y como se relacionan con nuestra materia

please help me out here 7. Viewed from Earth, two stars form an angle of 76.04. Star A is 23.30 light- years from Earth, and Star B is 34.76 light-years from Earth. Sketch a diagram modeling this situation and find how many light-years the stars are from each other. (3 points) Questions 8 - 10, deal with the ambiguous SSA case. For each, find all
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Net Cash from Financing activities Net Increase i decrease in cash Cash and cash equivalents at 1 July 2021 Cash and cash equivalents at 30 June 2022
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In a recent survey of Washingtonians, 63% indicated that they were in support of a new "mileage tax" for electric cars, 33% were against the tax, and 4% were undecided. What is the probability that two randomly chosen people from this survey would both be against the tax Give your answer as a decimal (to at least 4 places)

La configuracin de la velocidad del motor en las impresoras de las series E7 y E8 se denomina______. Seleccione el procedimiento para completar la oracin. Identificacin de ppm Configuracin de diferenciacin de ltima etapa (Late Point Differentiation configuration) Registro del rendimiento Configuracin de la velocidad del motor

A survey of 180 college students shows the average number of text messages sent per month. Less than 1000 1000-1999 2000-2999 3000 or more Men 35 10 18 27 Women 54 18 5 13 Find the probability a student sent less than 1000 texts given that it was a man. Give your answer as a fraction in reduced form. The probability a student sent less than 1000
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1. What is the symbol for the alternative hypothesis? ____________________ 2. Which is a higher level of significance: .05 or .01? That is, which level of significance makes it more difficult to reject the null hypothesis? .05 or .01 3. If a researcher is using a t statistic to test a null hypothesis about a population, what information is needed

I need help with this question having a hard time I need toConsider the following scale data. Participant Variable X VAriable Y 1 $1250 25 2 $1400 21 3 $1100 32 4 $1450 54 5 $1600 38 6 $2100 62 7 $3750 43 8 $1300 32 a. Convert the data to ordinal or ranked data, starting with a rank of 1 for the smallest data point. b. Compute the Spearman

For which numbers c and d does the following matrix have rank 2 , and rank 1 ? A = [ 1 - 1 2 0 5 0 0 c 3 3 0 0 0 d 3 ]
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1. A recent study focused on the number of times men and women send a Twitter message in a day. The information is summarized next. sample size sample mean Population St. Dev. Men 25 23 5 women 30 28 10 At the .01 significance level, is there a difference in the mean number of times men and women send a Twitter message in a day? What is the value

Researcher Johns set the alpha level for his clinical trial at the standard 0.05. When he ran his data, the difference between groups was found to be p = 0.002. Johns was elated! He interpreted this finding to mean his results: A.Were highly clinically significant B.Were statistically more significant and important C.Had 2 chances out of 1000 of

If every value of the dependent variable happened to lie on the estimated regression line the estimated regression equation would provide ______ Select one: a. Value -1 b. Correlation Coefficient c. Coefficient of Determination d. A perfect fit

A construction worker dropped a hammer while building the Grand Canyon skywalk, 3200 feet above the Colorado River. Use the formula, t = h / 4 , to find how many seconds it took for the hammer to reach the river. Round your answer to the nearest second. The skid marks for a car involved in an accident measured 200 feet. Use the formula, s = 2 4 d

"Your supervisor has been assigned to be the interim deputy assistant national operations manager of the Liberty Credit Union organization, a credit union with over 350 branches nationwide. The role directly serves the office of the Chief Operations Officer, which oversees national marketing and operations for the organization. The previous
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Question 5 a) What is the difference between correlation and regression analysis? (2 marks) b) A researcher wanted to know the relationship between age and the number of breakdowns of machines. He collected and analyzed the data. The output of the analysis for age of machines (years) and the number of breakdowns is shown below. Answer the
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Fertilizers have been the subject of very aggressive advertising recently. To see if they serve their designed purpose, two different fertilizers (A and B) were applied to nine different types of plants. The growth rate in inches per 30 days for each type of plant is recorded below. We would like to determine if fertilizer A is better for growth

Ferdinand Feed Company receives four rawgrains from which it blends its dry pet food.The pet food advertises that each 1-lb packetmeets the minimum daily requirements for vitamin C, protein and iron.The cost of each raw grain as well as the vitamin C, protein, and iron units per pound of each grain are summarized in Table 1. Ferdinand is
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Here we have data from 21 female college students. Forearm length in inches is the explanatory variable. Height in inches is the response variable. The line is a good summary of the linear pattern in the data. height (inches) 56 80 8.5 90 95 10.0 10.5 110 115 120 12 forearm (inches) Based on the graph of this line, which is the best prediction of

1. A business has two investment choices. Alternative 1 requires an immediate outlay of $1,100 and offers a return of $6,000 in seven years. Alternative 2 requires an immediate outlay of $2,300 in return for which $400 will be received at the end of every six months for the next seven years. The required rate of return on investment is 14%

Problem 5 Consider the 2013 declined loan data from Lending Club titled "RejectStatsB2013" from the Connect website. Similar to the analysis done in the chapter, let's scrub the risk score data. First, because our analysis requires risk scores, debt-to-income data, and employment length, we need to make sure each of them has valid data. a Open the
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Graphing equations on a coordinate plane is a simple way to visually represent the relationship between the input values ( x ) of an equation and the output values ( y ). This visual representation allows us to make predictions, solve problems, find the point(s) that solve both equations (when there are two), and analyze many other useful business

Read the paper and answer the questions. Much research on human behaviour and psychology assumes that everyone shares most fundamental cognitive and affective processes, and that findings from one population apply across the board. A growing body of evidence suggests that this is not the case. Experimental findings from several disciplines

please Type answers Question 9 (1 point) h2+2 percent) h hours after its injection into muscle tissue. The functionC (h) = 20h models the concentration of a medication in the bloodstream (as a Does the graph of the function have a vertical asymptote? If so, give the equation of the vertical asymptote and explain why this would concern or would not
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Please help me solve the following problems following and using Polya's Four Step Method and employing the different strategies. Thank you! (#1 - Understand the problem, #2 - Devise a plan (translate), #3 - Carry out the plan (solve), and #4 - Look back (check and interpret). PROBLEM: An egg vendor broke all the eggs that he was delivering to a

Example: Bonferroni inequality is often used in simultaneous statistical inference, known as Bonferroni confidence intervals. Suppose A, is a confidence interval for a parameter 0, i =1,2,3 We are interested in simultaneous coverage of the parameters so that the probability of all the components of & falling into the corresponding confidence
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Determine whether each sentence below is a statement. Let p represent the statement "Cars are not allowed in Chicago."---------------------------------- , and let q represent the statement "The CTA runs train and bus service in the city of Chicago."----------------------------------------------------------- . Determine whether each of the

could you answer and explain it? Problem 4. The joint density of X and Y is given by 2 f ( x , y ) = 2TT e- 2ye -(2-y)- /2 -00
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Can you please help me set this up? Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1}, complete parts [a] through [d]. E Click here to view page 1 of the cumulative standardized normal distribution table. E Click here to view page 2 of the cumulative standardized normal distribution table. a. What is the
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Hi, I don't know how to draw the node diagram and calculate the probability in part a). 2. At the right is a section of an innite gridenough has been diagrammed to make the pattern clear. Some nodes are white and some are grey. Two nodes are \"neighbours\" if they are connected by an edge. In each time unit, a counter occupying a node moves to a
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A normal distribution has =26and = 5. \f
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Please answer 1a, 1b, and 1c! Thank you! 1. Consider the following research questions/study scenarios. For each study, discuss the most appropriate methods for describing the data (graphically and numerically). What statistical method would be most appropriate for address- ing the research questions? Be sure to provide a justification of the
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TCD(X) = X2 X + 2 where X is the weekly production volume in thousands of units and TCD(X) is the cost in thousands of dollars. The Hamilton plant's weekly production costs are given by TCH(Y) = Y2 + 2Y + 4 Heller Manufacturing has two production facilities that manufacture baseball gloves. Production costs at the two facilities differ because of
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My Dog Ate My Homework One morning, you wake up to realize that your dog ate some of your CS 170 homework paper, which is an mn rectangular grid of squares. Some of the squares have holes chewed through them, and you cannot use paper that has a hole in it. You would like to cut the paper into pieces so as to separate all the tattered squares from

M v
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factoring special products

Let F(x,y)=x2+y2yi^+xj^ (a) Show that yP=xQ. (b) Compute C1Fdr, where C1 is the upper half of the circle x2+y2=1from(1,0)to(1,0) (c) Compute C2Fdr, where C2 is the lower half of the circle x2+y2=1from(1,0)to(1,0) (d) Using (a), (b) and (c) above, is the line integral independent of pat Is the vector field conservative
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Evaluate the integral by using a substitution prior to integration by parts. l n ( 8 x + 8 x 2 ) d x , l n ( 8 x + 8 x 2 ) + l n ( x + 1 ) + C , x l n ( 8 x + 8 x 2 ) + C , l n ( 8 x + 8 x 2 ) - 2 x + C , x l n ( 8 x + 8 x 2 ) + l n ( x + 1 ) - 2 x + C
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4 ( 2 x ) = 2 0

find d 2 y / dx 2 for the given function: y = sin ( x ) cos ( x )

Ortalama maliyet fonksiyonu AC = 6 Q + 9 + 1 2 0 / Q olarak VER LEN B R F RMANIN MARJ NAL MAL YET FONKS YONUNU BULUNUZ

1 0 0 0 0 4
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Trinity is throwing a tennis ball up in the air from the ground. Trinity is 5 feet tall and is throwing the ball straight up with an initial speed of 6 4 feet per second. The function: f ( t ) = - 1 6 t 2 + 6 4 t + 5 , where t represents time in seconds, models this situation. Trinity's friend Max is in an apartment building that is next to where
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Stem and Leaf Plot A stem and leaf plot is a data plot that uses part of the data value as the stem and part of the data value as the leaf to form groups or classes. Example 8 : At the outpatient center, the number of cardiograms performed each day for 2 0 days is shown. Construct a stem and leaf plot for the data. The leaves in the final stem and
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Question Solve: n - 4 = - 3 4 Provide your answer below: n =
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In 2016 the Better Business Bureau settled 85% of compiaints they received in the United States. Suppose you have been hired by the Better Business Bureau to investigate the complaints they received this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the Better
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8 + 9 + 1 1 + 1 2 4

According to a newspaper, 50% of bicycles stolen in a certain country are recovered. Find the probability that, in a sample of 7 randomly selected cases of bicycles stolen in the country, exactly 3 out of 7 bikes are recovered. The probability that exactly 3 out of 7 stolen bicycles are recovered is (Type an integer or decimal rounded to three
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What is linear regression

Whic of he ollowing equations are physically meanngful? knowing that m is the is the velocity [ m s ] , t is time s , and x is the distance m . Select all that apply. A . 1 2 m v 1 2 = 2 m v 2 2 - 3 m v 3 2 B . 2 m 1 = 3 m 2 C . 3 v = 2 x t
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AaBbCcDdEe AaBbCcDdE Normal No Spacing Assignment 1 7 : Compound Interest Remember to show all of your work, not just your final answer. You borrowed $ 5 9 0 0 0 for 2 years at 1 1 % , which was compounded annually. How much will you owe after the 2 years is up ? At age 2 7 , Jill deposited $ 4 0 0 0 into a TFSA ( Tax - Free Savings Account ) ,
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Simplify by combining like terms. - [ 8 - 4 ( q + 7 ) + q ]
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In the Peruvian high plains, we hear these types of aerophones played Cuica Surdo Siku timbales
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What is the value of z ^ 3 , if z = 2 cis 2 7 0 ?

solve x if cos 4 x = 1 / 2

AA aricopa.edready.org ChatGPT One Mnet H . . . Job Search I... tudy Paths Diagnostic Diagnostic Real Numbers Progress: Question ID: 1 0 4 8 The movement of the progress bar may be uneven because questions can be worth more or less ( including zero ) depending on your answer. Simplify: | 3 - 6 | - ( 1 2 6 + 1 ) 2 0 - 2 - 6 - 1 2 Submit Pass Hold
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The standard deviation for the golf scores of a class of 3 2 grade 1 2 physical education students was calculated. Similarly, the standard deviation was computed for the golf scores of 3 0 aspiring golf professionals. Which group would be expected to have the lower standard deviation in golf scores, and why?
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It rains 3 days per month on average in California. What is the probability that there will be 4 rainless months during the next year?
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The following is computer output from a linear regression performed on data that compares a person s handspan ( in cm ) to how many lollipops they could pick up with one hand.The following is computer output from a linear regression performed on data that compares a person's handspan ( in c m ) to how many lollipops they could pick up with one
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2. (Linear regression) Recall in linear regression, we have data pairs (X1,y1),(Xn,Yn) and we solve the following objective: ^+argRvminXY22. Here X,Y are the compact form to represent the data: XRnp with its i-th row vector to be Xi. and Y is a vector where its i-th coordinate is Yi=yi. (a) (6') Solve ^. (You should represent ^ in the form of X
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1 5 . A test with high specificity is . . . Unlikely to give a false positive or false negative. Unlikely to give a false positive but prone to false negatives. Unlikely to give a false negative but prone to false positives. Prone to both false positives and false negatives.

\ table [ [ Class limits , Frequency ] , [ 1 0 - 1 5 , 8 ] , [ 1 6 - 2 1 , 1 3 ] , [ 2 2 - 2 7 , 2 ] , [ 2 8 - 3 3 , 3 ] , [ 3 4 - 3 9 , 1 0 ] , [ 4 0 - 4 5 , 1 4 ] ] Send data to Excel Part: 0 2 Part 1 of 2 Find the mean. Round your answer to one decimal place, if necessary. The mean net worth is million dollars.
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help asap!!!!! A random sample of 11 students produced the following data, where x is the hours spent studying per month, and y is the midterm exam score (out of a maximum of 100 points). The data are presented below in the table of values: What is the value of the intercept of the regression line, b, rounded to one decimal place? Provide your
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For 2020, this dataset contains Information on 110 new car models in 2020. Some of the key variables were: Type of Car {SUV, Sedan, Sporty, Wagon, Hatchback, or Minivan} and Wheel Drive {AWD=All Wheel Drive, RWD=Rear Wheel Drive and FWD=Front Wheel Drive} among other variables. Figure 1 below: (Note: No math is needed beyond converting to % and
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Q 6 H . W A random sample of size n = 3 6 from a normal quantitative population produced a mean x = 1 5 . 2 and a variance S 2 = 9 . ( a ) Give a point estimate for the population mean m . ( b ) Find a 9 5 % confidence interval for the population mean m .
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Question 4 (20 points) The size of fish is normally distributed with a mean of 134.25cm and a standard devian (a) What is the probability that one randomly selected fish will have a size mo (b) What is the probability that one randomly selected fish will have a size (c) Describe the central limit theorem n Can you conclude if there is a difference
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Find the area enclosed by the curves y = - x 2 + 1 2 and y = x 2 - 6 .
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A survey by Men's Health magazine stated that 1 4 % of men said they used exercise to reduce stress. A random sample of 1 0 0 men was selected, and 1 0 said that they used exercise to relieve stress. Test the survey's statement using the P - value method at = 0 . 1 0 . ( 2 2 points ) ( a ) State both hypotheses. ( b ) Compute the test value. ( c )
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being examined. The results are as follows. 17,26,9,14,24,27,23,13 (a) How many degrees of freedom are present in this study? (b) What is the point estimate (in days)? days What is the standard deviation (in days) of the sample? (Round your answer to four decimal places.) days (c) What is the 95% confidence interval (in days) for the population
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A new car that is a gas- and electric-powered hybrid has recently hit the market. The distance travelled on 1 gallon of fuel is normally distributed with a mean of 60 miles and a standard deviation of 8 miles. Find the probability of the following events: A. The car travels more than 63 miles per gallon. Probability = B. The car travels less than
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Find the general antiderivative of x 3 + 5 - 7 x 2 x 2 d x
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Discuss the difference between ( mathrm{r} ) and ( ho ). Choose the correct answers below. ( r ) represents the ( ho ) represents the Discuss the difference between r and . Choose the correct answers below. r represents the represents the
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Let f ( x ) = 1 x - 4 and g ( x ) = 2 x + 6 Then ( f @ g ) ( 1 ) = ( f @ g ) ( x ) ? b = a r ( 1 2 x )
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A hill rises 35 35 ft for every horizontal 200 200 ft. Find the slope. Which of the following express its slope(or grade)? A right triangle has a horizontal leg labeled 200 feet and a vertical leg labeled 35 feet. 200feet 35feet Select all that apply 35 7/40 35/ 200 0.175 5 and 5/7 40/7 7/40 0.175

Giorgio's two-bedroom, two-bath home is worth about $250,000. He surmises that a similar home down the block is worth about the same amount. What principle of value is Giorgio using to make this determination? principle of anticipation principle of substitution principle of change principle of contribution

is 1/[sqrt2pi] integral from -inf to inf of e^[ik[y-x]]dk the same as is 1/[sqrt2pi] integral from -inf to inf of e^[ik[x-y]]dk

Hello, I need help with the following. Thanks so much in advance. The algorithm you will implement below is based on the following observation. There is a directed path in G connecting a: to y if and only if one of the following holds: a there is a directed edge from I to y, 0 there is a directed path from x to y passing through the vertex a. 0
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a) f(=) = z b) f (=) = Log(=) 7 c) f(=) = Log(= + 4) d) f(=) = (=2 - 2)3, using the principal square root e) f(z) = (=2 - z), using the branch of the square root given by arg(z) E (0, 2n) f) eLog(=) Solution: Let's directly verify the conditions of the CIT. We will assume that the curve is positively oriented, but as we have seen in question 5,
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lee Burns | Mess. napAT 100% Normal text Times New.. 12 + BIUA SCH . 2. A farmer plants white rice and brown rice on 10 acres of land. He must use pesticide on all 10 acres and he has 18 liters of pesticide to use. White rice requires 2 liters of pesticide per acre and brown rice requires 1 liter of pesticide per acre. If he can earn $5000 for
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When one thinks of the normal distribution, the first thing that comes to mind is the bell curve and grades. While this is one example of a normal curve that is widely recognized, it is not the only one. Come up with a unique normal distribution from literature that your classmates have not posted about already. Explain your normal curve with

3.Las llegadas de los clientes a un banco son aleatorias e independientes; la probabilidad de una llegada en un lapso cualquiera de un minuto es la misma que la probabilidad de una llegada en otro lapso cualquiera de un minuto. Conteste las preguntas siguientes suponiendo que la tasa media de llegadas en un lapso de un minuto es tres clientes. a.

According to a recent survey by USA Today, 54% of shoppers regularly give a charitable donation at the cash register. Suppose four shoppers are selected at random. a) What is the probability that all four will give a charitable donation at the cash register? b) What is the probability that none of the four will give a charitable donation at the

Chapter 04.1 Exercise Question 17 4.1.17 Do men with children tend to live longer than men without children? To investigate, a group of students at CalPoly randomly sampled men from the obituaries page on the San Luis Obispo Tribune's webpage between June and November 2012. For each man selected, they noted the age at which the person died and
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