20 wrist watches in a box of 100 are defective. If 10 watches are selected at random, find the probability that (i) 10 are defective; (ii) 10 are good; (iii) at least one watch is defective; (iv) at most 3 are defective.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Question of the day:
20 wrist watches in a box of 100 are defective.
If 10 watches are selected at random, find the
probability that (i) 10 are defective; (ii) 10 are
good; (iii) at least one watch is defective; (iv) at
most 3 are defective.
Transcribed Image Text:Question of the day: 20 wrist watches in a box of 100 are defective. If 10 watches are selected at random, find the probability that (i) 10 are defective; (ii) 10 are good; (iii) at least one watch is defective; (iv) at most 3 are defective.
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