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A salesperson knows that 20% of her presentations result in sales. Use the normal approximation formula for
the Binomial distribution to find the probabilities that in the next 60 presentations at least 9 result in sales.
Let P(Z<-1.13) 0.1268 and P(Z<-0.81) = 0.2089.
A. 0.8732
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FUO.sh
sh the exam.
B. 0.7911
C. 0.1241
D. 0.6421
E. None of the other choices is correct
