Stats Problem 21 Nov 2005

Use a Venn diagram to solve the problems:

At a Georgia college it is found that in the senior class of 500 students, 210 of them smoke, 258 do not exercise regularly, and 216 are overweight. If 122 of them smoke and do not exercise regularly, 83 are overweight and do not exercise regularly, 97 are overweight and smoke, and 52 are all three, find the probability that a randomly selected senior

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