. (a) A shipment of 30 computers to a store contains 5 that are defective. If the store sells 3 computers, X of which are defective, find the 1. cumulative distribution of X. 2. expected value of X. 3. variance of X. (b) The probability that "heads” will occur in flipping an unfair coin is 2/3. If we flip the coin 5 times, find the probability of obtaining 1. at least 3 heads. 2. at most 3 heads.

. (a) A shipment of 30 computers to a store contains 5 that are defective. If the store sells 3 computers, X of which are defective, find the 1. cumulative distribution of X. 2. expected value of X. 3. variance of X. (b) The probability that "heads” will occur in flipping an unfair coin is 2/3. If we flip the coin 5 times, find the probability of obtaining 1. at least 3 heads. 2. at most 3 heads.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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