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Suppose in a survey of 1000 people, 603 report regularly watching baseball, 230 report regu- larly watching tennis, and 80 people report regularly watching both

Suppose in a survey of 1000 people, 603 report regularly watching baseball, 230 report regu- larly watching tennis, and 80 people report regularly watching both baseball and tennis.

(a) What is the probability that a randomly selected person regularly watches both baseball and tennis?

(b) What is the probability that a randomly selected person regularly watches baseball or tennis (or both)?

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