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Statistics

Consider the following contingency table:

	Under 20	21-30	31-40	Total
Male	12	12	17	41
Female	13	16	21	50
Total	25	28	38	91

A. If one person is selected at random, what is the probability that person is Female?

B. If one person is selected at random, what is the probability that person is either under 20 or over 30?

C. If one person is selected at random, what is the probability that person is either male or in the age group 21-30?

D. If two people are selected at random, what is the probability they are both female?

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Category:- Statistics and Probability
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