Determine whether the random variable X has a binomial distribution. If it does, state the number of trials n. If it does not, explain why not. Twenty students are randomly chosen from a math class of 70 students. Let X be the total number of student absences.

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A: From the provided information, Number of observations (n) = 9

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A: GivenA die is rolled one timethen the outcomes are{1,2,3,4,5,6}Total no.of outcomes = 6

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Q: 2) The student body of 120 students wants to elect three representatives. 4) The batting order for s...

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Q: A mechanic can service 1,2,3 or more cars each days with their respective proba- bilities of 0.43, 0...

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Q: (a) A daily sample of 30 items was taken over a period of 14 days in order to establish control limi...

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Q: Prove that X and Y are independent if and only if R = 0

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Q: Given are the scores of 10 employees from their 20-point assessment 16 18 10 8 12 15 19 17 16 7 Calc...

A: Given are the scores of 10 employees from their 20-point assessment Scores are : 16,18,10,8,12,15,19...

Q: Two populations have means μ0 = 9 and μ1 = 10.15, and they both have a standard deviation of σ = 3.0...

A: Given that two populations have means, μ0=9 and μ1=10.15 and both have a standard deviation, σ=3.003...

Q: 2.70 Bills 1. What percent of fifty-dollar bills were donated to the organization? 27.02 50 ISS 2. W...

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Q: Given the following, determine the regression equation of : () X1 on X2 and X3 (ii) X2 on X1 and X3 ...

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Q: Assume X,. X,.... form a sequence of independent RVs, each uni- formly distributed on (0, 1). Let N=...

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Q: Suppose that X has a lognormal distribution with parameters e = 5 and w? = 9. Determine the followin...

A: Solution-: Given: θ=5,ω2=9 ∴ ω=3 We find x such that, P(X≤x)=0.95

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Q: In the previous lessons, you learned of the importance of the mean and the standard deviation. You a...

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Q: 8

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Q: 4. All freshmen in a certain school were found to have variability in grades expressed as a standard...

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Q: Blood serum cholesterol levels of 10 persons are as ubder: 240 260 290 245 255 288 272 263 277 251Ca...

A: Given The data is as follows: 240, 260, 290, 245, 255, 288, 272, 263, 277, 251

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Q: 18. A die is made in such a way that an even number is twice as likely to occur as an odd number. If...

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A: Given : Brand Name Drug Cost (X) Generic Drug Cost (Y) 96 42 93 31 59 17 80 16 44 8 4...

Q: .The average length of a flight by regional airlines in the United States has been reported s464 mil...

A: We have given that  Sample size n = 30 Sample mean =479.6 Standard deviation =42.8