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Sports Activities in 1998

The following table gives participation in selected sports activities in 1998, in thousands, for persons living in the U.S. age 7 or older. (Source: Statistical Abstract of the United States 2000, 120th Edition

Exercise Bicycle
Sport Walking Swimming Equipment Riding Basketball Golf Total

Male 28,368 26,993 21,424 22,937 20,166 21,757 141,645
Female 49,278 31,256 24,721 20,598 9,251 5,739 140,843
Total 77,646 58,249 46,145 43,535 29,417 27,496 282,488

Of those who participate in walking, what proportion are female?

Of those who participate in walking, what proportion are male?

Of those who participate in golf, what proportion are female?

Of those who participate in golf, what proportion are male?

Among the males represented in the table, find the proportion who participate in walking and find the proportion who participate in golf.

Compare your results from parts b, d, and e of this exploration. Suppose an individual age seven or older and represented in this table is chosen at random. Are the events "person is male" and "person participates in bicycle riding" independent?

Solution Preview

a. Of those who participate in walking, what proportion are female?

P(F on walking) = 49,278 / 77,646 = 8213/12941 or 0.635 or 63.5% are females

b. Of those who participate in walking, what proportion are male?

P(M on walking) = 28,368/77,646 = 4728/12941 or 0.365 or 36.5% are males

c. Of those who participate in golf, what proportion are female?

P(F on golf) = 5,739 / 27,496 = 0.209 ...

Solution Summary

Sports activities in 1998 is determined. The statistical abstract of the United States is determined.

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