Six hundred adults were asked whether or not they watch for calories and fat content when they buy groceries. The following table gives the two-way classification of their responses, where yes means that an adult watches for calories and fat content and no means he/she does not watch.

If one adult is randomly selected from these 600 adults, find the following probabilities.

a. P(man or no) 

b. P(yes or woman) 

c. P(no opinion or yes)

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Yes No Opinion No Men 58 168 Men 74 106 Women 124 70