Use the following frequency distribution to determine the class limits of the third class. Class Frequency. 5-8 9-11 12-14 15-17 18-20 21-23 7 11 8 5 9 6 OA. lower limit: 11; upper limit: 15 OB. lower limit: 11.5; upper limit: 14.5 OC. lower limit: 12; upper limit: 14 OD. lower limit: 12; upper limit: 15

Q: Let x be a random variable that represents the percentage of successful free throws a professional…

A: Solution: Given information: n=6 Se=4.144b=0.581tc=2.132x=79.5000∑(x-x)2=483.5

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A:

Q: a. Find E(Y₁-Y₂) b. Find Covariance (Y₁,Y2) (

A:

Q: 3. The pdf of X is given by f(x)= (x+1)/2 -1<x<1 Find the pdf of Y=X+2

A: Given that  Pdf of X is  f(x) = (x + 1)/2 , -1 &lt; X &lt; 1

Q: Find the next two numbers in the sequence below: 2, -6, 12, -20, 30, -42,

A: Solution-: We want to find the next two numbers in the sequence below: 2, -6, 12, -20, 30, -42,

Q: Here are summary statistics for randomly selected weights of newborn​ girls: n=36​,…

A: given data sample size (n) = 36sample mean ( x¯ ) = 3180.6sample standard deviatio (s) =700.595% ci…

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A: Given: A plot on "Annual Sales of Widgets at Company X" has a horizontal axis with years ranging…

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A: Given that  Sample size n =58 Favorable cases x =18 Sample proportion p^=x/n  =18/58 =0.31

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A:

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

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A: Solution-: Let, X=Time (min) and Y=Mass (g) Given data: X Y 26 46 33 39 40 33 45 26 47…

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A: Given that Sample size(n)=21 Sample mean x̄=53.6 Sample standard deviation(s) =3.23  We have to find…

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A: Given information:   Under 30 Years of Age Over 30 years of Age Female 78 75 105 76 79 72…

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A: Given: The following data is provided: No. of movies Frequency 0 5 1 6 2 4 3 5 4 1

Q: t the claim below about the mean of the differences for a population of paired data at the level of…

A: given data, μd&lt;0α=0.01d=1.4sd=3.8n=19df=n-1=19-1=18we have to answer for the given datahere in…

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A: Given Alpha=0.01 Median=20 oz n=36

Q: omeone took 6 samples, they found an average of 8.5 #/1 with a standard deviation of 1.6 #/1 a)…

A: Given that  Sample size n =6 Sample mean=8.5 Standard deviation =1.6

Q: The table to the right shows selected ages of licensed drivers in one country and the corresponding…

A: age percentile 75 99 65 90 55 75 45 62 35 36 25 15 20 4

Q: Suppose a player's true batting average is Normal, with mu = .276, and standard deviation, sigma =…

A: Let X be the random variable from normal distribution with mean (μ) = 0.276 and standard deviation…

Q: If n=29, ¯x(x-bar)=41, and s=5, find the margin of error at a 99% confidence level Give your answer…

A: given data sample size (n) = 29sample mean ( x¯ ) = 41sample standard deviation (s) = 599% ci for…

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A: Given information: Actual Reported 70.5 70 67.1 68 71.2 71 61.9 62 60.7 61 68.8 69…

Q: find the minimum sample size n needed to estimate μ for the given values of c, σ  , and E.     c =…

A: given data  c = 0.95 σ = 9.5E = 1n = ?

Q: sample of 10 adult males had a mean systolic blood pressure of 125. It is believed that the standard…

A: GIVEN DATA, n=10x¯=125s=15CI=0.98α=1-0.98=0.02

Q: ge for the following group of data items. 1.8, 5.6, 7.4, 2.6, 5.6, 5.6, 3.3, 6.1, 3.9, 2.3, 2.3 The…

A: Data given 1.8, 5.6, 7.4, 2.6, 5.6, 5.6, 3.3, 6.1, 3.9, 2.3, 2.3

Q: progressive college experiments with matching roommates at random, regardless of gender or how cool…

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Q: a. Find the correlation coefficient: r = b. The null and alternative hypotheses for correlation are:…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

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Q: Which of the following is not true of statistics? OA. Statistics is about providing a measure of…

A: Objective of this question is that which statement is correct.

Q: Overtime Hours Worked A random sample of 14 registered nurses in a large hospital showed that they…

A: Givensample size(n)=14Mean(x)=42.4standard deviation(s)=2.1confidence level=95%

Q: A detection device is used to monitor the level of carbon monoxide (CO) in the air. The following…

A: Given: Data 7.28   8.5   5.56   8.18    4.03    6.98   9.13    7.34     5.56    8.69    9.05    7.98…

Q: 19 90 0.4 2 8 0 ecdf of Wine consumption 100 200 X 300 400 Frequency 0 Bar plot of Wine consumption…

A: Solution: The ecdf, bar plot and box plot of wine consumption are given.

Q: c) If X is the recovery time, compute P (4 < x < 5.5) and interpret what it means in the context of…

A: It is given that  Mean = 6.4 Standard deviation = 2.3

Q: Silvia Garcia is monitoring the operation of a machine that makes radar components. After studying…

A: Given Sample # defective % defective 1 6 0.03 2 7 0.035 3 7 0.035 4 8 0.04 5 8 0.04 6…

Q: Suppose losses X are lognormally distributed with mean and variance o², written X Lognormal(1, 2).…

A: Given that X~Lognormalμ,σ2. We have to find ESα(X)=EX|X&gt;VaRα. We know that if X is a continuous…

Q: Find the indicated area under the standard normal curve.   To the right of z=0.17   Click here to…

A: P(Z&gt;0.17) =?

Q: In one math class, the first exam had an average score of 81.2% with a standard deviation of 10.9%.…

A: From the given information, In one math class, the first exam had an average score of 81.2% with a…

Q: Cigarette Smoking A researcher found that a cigarette smoker smokes on average 31 cigarettes a day.…

A: Given Mean=31 n=8 S=2.9 x-bar=28 Alpha=0.01

Q: The

A:

Q: Is the average time to complete an obstacle course shorter when a patch is placed over the right eye…

A: Suppose μd is the population mean value of the differences of time to complete a course when a patch…

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Q: In a sentence or two, describe the relationship between a sample and a population. Explain the…

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A: Given that  Population Standard Deviation = 3.2 Sample size = 42 Note : According to bartleby…

Q: Question 4 Another Chi-square goodness-of-fit test. Consider the following sorted twelve ob-…

A: a Given sample values: -3.05, -0.28, -0.08, -0.02, 0.03, 0.18, 0.23, 0.26, 0.36, 2.08, 2.73, 4.26.…

Q: Find the mean for the following group of data items. 4, 6, 9, 1, 8, 5, 6, 8 The mean is (Type an…

A: Data given  X:4,6,9,1,8,5,6,8

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Q: Five males with an​ X-linked genetic disorder have one child each. The random variable x is the…

A: Given data is x P(x) 0 0.027 1 0.145 2 0.328 3 0.328 4 0.145 5 0.027