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Suppose that 65% of Louisiana residents who are susceptible to stroke recognize 1 more of the...

Suppose that 65% of Louisiana residents who are susceptible to stroke recognize 1 more of the warning signs (i.e.l sudden severe headache, unexplained dizziness, unsteadiness, loss of vision, difficulty speaking, numbness on one side of the body, etc.)

If a random sample of 9 Louisiana residents who are susceptible to stroke is to be taken, what is the probability that at least 7 of the 9 will recognize one or more of the warning signs?

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Answer #1

Given Xo-Binomial (n-3,P-o.65) I et こ(36)(O.Gs)7(0.35)24(g)(0.65)8(0.35)t (1065) (o.35) 0.21618S t 0.100 373 + 0.020712 0.337

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