In algebra, when doing index notation, if the denominator has a higher index value than the numerator, what would simplifying th
1 answer:
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Answer:
(a)P(x>85.55)=0.02275
(b)
Step-by-step explanation:
We are given that
Average sales for an online textbook distributor per customer per purchase
,$67.63
Standard deviation of the amount spent on textbooks,$8.96
(a) We have to find probability for a randomly selected customer spent more than $85.55 per purchase.
=
=
=
P(x>85.55)=0.02275
(b)We have to find probability for a randomly selected customer spent less than $76.59 per purchase