19. The National Sporting Goods Association conducted a survey of persons 7 years of age or older...

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19. The National Sporting Goods Association conducted a survey of persons 7 years of age or older about participation in sports activities (Statistical Abstract of the United States: 2002). The total population in this age group was reported at 248.5 million, with 120.9 million male and 127.6 million female. The number of participants for the top five sports activities appears here.

a. For a randomly selected female, estimate the probability of participation in each of the sports activities.

b. For a randomly selected male, estimate the probability of participation in each of the sports activities.

c. For a randomly selected person, what is the probability the person participates in exercise walking?

d. Someone tells you they saw an exercise walker. What is the probability the walker is a woman? What is the probability the walker is a man?

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