Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN: 9780079039897
Author: Carter
Publisher: McGraw Hill
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Question
. (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.
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Transcribed Image Text:. (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.
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