1. A box contains 50 laptops, 10 of which are defective. 5 laptops are selected. Find the probability that 1 of them is defective. 2. It is given that 5% of cell phones is damages in a particular shop. Find the probability that 2 of 20 cell phones are damages.

1. A box contains 50 laptops, 10 of which are defective. 5 laptops are selected. Find the probability that 1 of them is defective. 2. It is given that 5% of cell phones is damages in a particular shop. Find the probability that 2 of 20 cell phones are damages.

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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1. A box contains 50 laptops, 10 of which are defective. 5 laptops are selected. Find the probability that 1 of them is defective.

2. It is given that 5% of cell phones is damages in a particular shop. Find the probability that 2 of 20 cell phones are damages.

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