JAXKBOII9924 JAXKBOII9924
  • 30-11-2022
  • Mathematics
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problem 1. monthly sales are independent normal random variables with mean 120 and standard deviation 5. (a) find the probability that exactly 4 of the next 6 months have sales greater than 120. (b) find the probability that the total of the sales in the next 4 months is greater than 500.

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