Question

Each employee (on average) is equally productive, and each one's monthly sales are normally distributed with a mean of $127,000 and SD $24,000. What is the likelihood that at least two employees will have sales greater than $160,000 in a particular month?

Answer 1

Answer:

0,1706

Explanation:

mean = $127.000

SD= $ 24.000

P ( X> $160.000 ) =P (Z> (X-MEAN) / SD ) = P(Z> (127.000-164.000) / 24.000)

P (Z> - 1,375) = 1- P ( Z< 1,375)  = 1- 0,9147 = 0,0853 x 2 employees = 0,1706