4.3.29 Question Help Pollsters are concerned about declining levels of cooperati

Question

4.3.29 Question Help Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 95 people in the 18-21 age bracket and finds that 60 of them respond and 35 refuse to respond When 274 people in the 22-29 age bracket are contacted, 251 respond and 23 refuse to respond Suppose that one of the 369 people is randomly selected. Find the probability of getting someone in the 22-29 age bracket or someone who responded P(person is in the 22-29 age bracket or responded)= (Do not round until the final answer. Then round to three decimal places as needed) : ". | 1.1 vi :/i : .. I (..) |dore Enter your answer in the answer box and then click Check Answer All parts showing Clear A Copyright 2017 Pearson Education

Explanation / Answer

P(person is in 22 - 29 year bracket or responded) = (274 + 60)/369

= 334/369

= 0.905

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