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Sheka A.

asked • 03/07/20

Help Please Stuck

There are declining levels of cooperation among persons contacted in surveys and this brings concerns to pollsters. A pollster contacts 81 people in the 18-21 age bracket and finds that 69 of them respond and 12 refuse to respond. When 295 people in the 22-29 age bracket are contacted, 260 respond and 35 refuse to respond. Assume that 1 of the 376 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who refused to respond.

CRUZ C.

tutor
P(18-21) = 81/376. P(refused to respond)= 47/376. Find the probability of (18-21) OR (refused to respond).
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03/07/20

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