28 A teacher wants to see if their students' favorite type of music is related to their favorite pet. What is an appropriate display for this data? Bar chart Two-way table Side-by--side boxplots Scatterplot 29 The table shows the results of a survey among children about their favorite pet. What percent of the toddlers prefer cats? Dogs Cats Other Total 18% 40% ) 64% Toddlers 24 18 3 45 Teenagers 20 10 5 35 Total 44 28 8 80

Q: The time spent waiting in the line is approximately normally distributed. The mean waiting time is 6…

A: Mean=M=6, Standard deviation=S=3X~N(M=6, S=3)

Q: Five hundred values are normally distributed with a mean of 125 and a standard deviation of 10.…

A: From the provided information,Mean (µ) = 125Standard deviation (σ) = 10

Q: (a) What percent of the SAT verbal scores are less than 625? (b) If 1000 SAT verbal scores are…

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A:

Q: a. The probability that the first selected candy will be red and the second selected candy wil be…

A:

Q: = Consider the random variable X with support Sx tion given by k » - {. ()* = 0 P(X= k): {0,1,2,...}…

A: The pmf of X P(X=k)=c(1/5)k for x=0,1,2,3..a..to find value of c b.. P(X≥2)d.. cdf of X

Q: Find the density function f(x) corresponding to the characteristic function defined as follows;…

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Q: Use the Central Limit Theorem to find the probability of the indicated event, assuming that the…

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A:

Q: what's the range of the data set? 14,52,17,23,65,15

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Q: 5.1.9 WP SS VS Determine the value of c such that the function f(x, y) = cxy for 0 1.8, 1< Y < 2.5)

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Q: What is the probability of drawing a red card from a standard deck of 52 playing cards?

A:

Q: a. The probability that an item randomly selected from the box is defective is b. If an item…

A: P(M1) = 0.3P(D| M1) = 0.02P(M2) = 0.7P(D| M2) = 0.04

Q: The state medical school has discovered a new test for tuberculosis. (If the test indicates a person…

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Q: inserts letters into envelopes goes haywire c obability that in a group of 100 letters Correct…

A:

Q: In a raffle where 2000 tickets are sold for $2 each, one prize of $8000 will be awarded.   What is…

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Q: Write missing values in the statements a. and b. Write proper names in the statement c. Alex and…

A: Alex ACT testu =25Sd = 5Xact = 20Bores SAT testu = 1150Sd = 50Xsat = 1050

Q: The joint density function of continuous random variables X and Y is given by: cxy, 0 1). { 0 (a)…

A:

Q: SOLVE STEP BY STEP IN DIGITAL FORMAT 13. An insurance company covers a large number of drivers. Let…

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Q: Q43. If the difference between three times of mean and three times of variance is two for a binomial…

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A:

Q: if the sample size is 279 and passed 221 and fail 58 what is the probability ratio

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Q: End of Year Mean Net Cash Flow Standard Deviation of Cash Flow 0 1 2 3 4 5 -$32,000 $4,000 $8,000…

A: Normal Distribution:A normal distribution is a type of continuous probability distribution in which…

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A: E(X) is expressed in terms of cdf.

Q: 3. Test scores for a Math Class are recorded as follows: 72, 74, 75, 77, 79, 82, 83, 87, 88, 90, 91,…

A: The given data is already arranged in ascending order.Sample size(n)=18

Q: 4. A random sample of n=1000 observations from a binomial population produced x = 279 a) If your…

A: x=279, n=1000, p=0.3

Q: For a certain river, suppose the drought length Y is the number of consecutive time intervals in…

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Q: NBC News reported on May 2, 2013, that 1 in 20 children in the United States have a food allergy of…

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Q: Let X be a discrete random variable that takes value in {0, 1, 2, 3,...}. Show the following Hints:…

A: Given that X is a discrete random variable and we have to prove:

Q: a) What is P(ANB)? b) What is P(BA)? Suppose P(A/B)-0.2, P(B)-0.8, and P(A) - 0.64.

A: P(A|B) = 0.2P(B) = 0.8P(A) = 0.64

Q: Prove or disprove. If E(XY)- EUX)E(Y), then X and Y are independent.

A: Solution-:We want to prove or disproveIf E(XY)=E(X)*E(Y), then X and Y are independent.

Q: place kicker in pro football has a 77% probability of making a field goal over 40 yards, and each…

A: According to the given information, the probability of making a field goal over yards is . All the…

Q: Fill in missing values in the following statements. The distribution of the lengths of long-stemmed…

A: Solution-:Given: We want to find(a) .......... percent of the long-stemmed roses have the lengths…

Q: Problem 12 In a survey of 270 college students, it is found that 64 like Brussels sprouts, 94 like…

A:

Q: The following data set contains the number of minutes spent by each of 20 students in the class to…

A: Median is the middle value that divides a data set into two equal halves. One half contains values…

Q: Consider the following. Year 1790 1800 1810 1820 1830 1840 1850 1860 1870 1880 1890 1900 1910 1920…

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Q: 6. On average, 5 customers visit a store every 15 minutes. What is the probability that exactly 7…

A: It is given that on average 5 customers visit a store every 15 minutes.

Q: nts] 1522 customers at a major retailer were surveyed whether or not they made a purchase and were…

A: We have given following information:Satisfied With ServiceNot Satisfied with ServiceTotalMade a…

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Q: What is the probability of landing a 6 on every dice. number of dices rolled are 3. Can you provide…

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Q: enetics. The accompanying table describes results from groups of 8 births from 8 different sets of…

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Q: Tom says that he needs 6 rolls to obtain each possible outcome on a 6-sided die. On the fourth roll,…

A: Number of possible outcomes = (1,2,3,4,5,6)Probability of each outcome = 1/6

Q: 10.a. Telephone calls arrive at an exchange according to a poisson process at the rate of one call…

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Q: 2. where The random variable, X, has a probability density function (pdf), f(x), and zero otherwise.…

A: Given data : Probability density function is givenAccording to this function, First we will find the…