19. ANSWER D AND FOR SAMPLE For a sample of n = 200, what is the mean of the binomial distribution with p= .20 and q = .80?O 204080O 160 The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following.124816p(x) 0.05 0.15 0.25 0.35 0.20X(a) Compute E(X) (in GB). (Enter your answer to two decimal places.)GB(b) Compute V(X) (in GB2) directly from the definition. (Enter your answer to four decimal places.)GB2(c) Compute the standard deviation of X (in GB). (Round your answer to three decimal places.)GB(d) Compute V(X) (in GB2) using the shortcut formula. (Enter your answer to four decimal places.)GB2

Given that Probability mass function of X x 1 2 4 8 16 p(x) 0.05 0.15 0.25 0.35 0.20

Answered: ANSWER D AND FOR SAMPLE

Math

Probability

ANSWER D AND FOR SAMPLE

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 33% of air passengers prefer an aisle seat. n3= (Round up to the nearest integer.)
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