Question

Sale amounts during lunch hour at a local subway are normally ditributed, with a mean $ 7.74, and a standard deviation og $ 2.29.

a. Find the probability that a randomly selected sale was at least $ 9.61?


b. A particular sale was $ 6.6. What is the percentile rank for this sale amount? %


c. Give the sale amount that is the cutoff for the highest 60 %?


d.What is the probability that a randomly selected sale is between $5.00 and $9.00?


e. What sale amount represents the cutoff for the middle 68 percent of sales? ( The smaller number here)(Bigger

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Answer 1