A stockist has 20 items in a lot. Out ofwhich 12 are non-defective and 8 aredefective. A customer selects 3 itemsfrom the lot. What is the probabilitythat out of these three items (i) threeitems are non-defective; (ii) two arenon defective and one is defective.

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Answered: A stockist has 20 items in a lot. Out…

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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A stockist has 20 items in a lot. Out of which 12 are non-defective and 8 are defective. A customer selects 3 items from the lot. What is the probability that out of these three items (i) three items are non-defective; (ii) two are non defective and one is defective.