Fifty raffle tickets are numbered 1 throughout 50 and one, Ask an Expert

Statistics

Basic probability - set theory.

Fifty raffle tickets are numbered 1 throughout 50, and one of them is drawn at random. What is the probability that the number is a multiple of 5 or 8? Consider the following "solution": Since 10 tickets bear numbers that are multiples of 5 and 6 tickets bear numbers that are multiples of 8; we concluded the necessary probability is as follows.

10/50 + 6/50 = 16/50

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Category:- Statistics and Probability
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