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2. In a group of 10 batteries, 3 are dead. You choose 4 batteries at random. Let X- the number of good batteries you get.
2. In a group of 10 batteries, 3 are dead. You choose 4 batteries at random. Let X- the number of good batteries you get.
- a) Find the probability distribution of X.
- b) What is the expected number of good ones you get? What is the standard deviation of X?
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Transportation A Global Supply Chain Perspective
Authors: John J. Coyle, Robert A. Novak, Brian Gibson, Edward J. Bard
8th edition
9781305445352, 1133592961, 130544535X, 978-1133592969
