Addition Rules..please help ??

To maintain their physical fitness, Americans are exercising more than ever in a variety of ways. Bradley and Robbins interviewed many Americans to determine how they were exercising. They present the following data: 53% jog, 44% swim, 46% cycle, 18% jog and swim, 15% swim and cycle, 17% jog and cycle, and 7% jog, swim, and cycle. If an American who exercises regularly is randomly selected, what is the probability that the person either jogs, swims or cycles to maintain physical fitness? (Create a Venn Diagram)

Question

Addition Rules..please help ??

To maintain their physical fitness, Americans are exercising more than ever in a variety of ways. Bradley and Robbins interviewed many Americans to determine how they were exercising. They present the following data: 53% jog, 44% swim, 46% cycle, 18% jog and swim, 15% swim and cycle, 17% jog and cycle, and 7% jog, swim, and cycle. If an American who exercises regularly is randomly selected, what is the probability that the person either jogs, swims or cycles to maintain physical fitness? (Create a Venn Diagram)

anonymous · Answer

i think i know how to do the ven diagram....i just dont know how to get the answer
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ranga · Answer

First, the numbers above will have to be adjusted.  If I add up all the percentages in the jog circle the total should be 53%.  Total of numbers in swim circle should be 44%.  Total of all numbers in the cycle circle should be 46%.

anonymous · Answer

should i subtract the betweens from the main like this?
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