1. If a person is selected at random, what is the probability that the person is a female or favors the issue.
2. If a person is selected at random, what is the probability the person is a male or is against the issue.
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First find the total number of males by adding across the rows:
Total males = 72 + 81 + 5 = 158
Now find the total number of females by adding across the rows:
Total females = 103 + 68 + 7 = 178
Also total number of people asked = 158 + 178 = 336
1. Now for the questions
Female = 178
Favors the issue (male) = 72
Hence P(female or favors issue) = (178 + 72)/ 336 = 250/336 =125/ 168
2. male = 158
against the issue (female) = 68
Hence P( male or against issue) = (158 + 68)/ 336 = 226/336 = 113/ 168
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