Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 86 people in the 18-21 age bracket and finds that 74 of them respond and 12 refuse to respond. When 257 people in the 22-29 age bracket are contacted, 236 respond and 21 refuse to respond. Suppose that one of the 343 people is randomly selected. Find the probability of getting someone in the 22 dash 29 age bracket or someone who refused to respond.
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