Question

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 89 people in the 18-21 age bracket and finds that 76 of them respond and 13 refuse to respond. When 292 people in the 22-29 age bracket are contacted, 274 respond and 18 refuse to respond. Assume that 1 of the 381 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who refused to respond.

Answer 1

the probability of gtting someone in the 18- 21 age bracket on someone who agreed to respond = 86/341 = 1/A an pencentage = 1/4 x 100 = 25

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