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OVERTONE · Answer 1 · 2022-01-29T06:34:38+0000

Explanation:

Taking A as people who watch tennis and B as people who play sport. Then finding the number of people who watch tennis but doesn't play sports through formula of sets.

And then finding probability.

In a group of 140 adults, 92 watch tennis, 81 play a sport and 40 do neither. Find-example-1

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