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D Question 6 5 pts 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 254 people in the 22-29 age bracket are contacted, 235 respond and 19 refuse to respond. Assume that 1 of the 343 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who refused to respond. Give your answer as a decimal (to at least 4 places). D Question 7 5 If a seed is planted, it has a 95% chance of growing into a healthy plant. If 6 seeds are planted, what is the probability that exactly 4 don't grow