A carton of 20 laptop batteries contains 2 defective ones. A random sample of 3 is selected
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A carton of 20 laptop batteries contains 2 defective ones. A random sample of 3 is selected from the 20 and tested. Let X be the random variable associated with the number of defective batteries found in a sample.
(A) Find the probability distribution of X.
(B) Find the expected number of defective batteries in a sample.
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Related Book For
Finite Mathematics For Business Economics Life Sciences And Social Sciences
ISBN: 9780134862620
14th Edition
Authors: Raymond Barnett, Michael Ziegler, Karl Byleen, Christopher Stocker
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