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Consider the following contingency table:
Under 20
21-30
31-40
Total
Male
12
17
41
Female
13
16
21
50
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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