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Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 81 people in the 18-21 age bracket and

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 81 people in the 18-21 age bracket and finds that 69 of them respond and 12 refuse to respond. When 302 people in the 22-29 age bracket are contacted, 284 respond and 18 refuse to respond. Assume that 1 of the 383 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who responds.

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