(Choose 1 answer)
The monthly electrical utility bills of all customers for the Far East Power and Light Company distributed as a normal distribution with mean equal to 87 dollars a month and standard devi If a statistical sample of n = 100 customers is selected at random, what is the probability that bill for those sampled will exceed 75 dollars?
Let P(Z-3.33) ≈ 0, P(Z -0.33) = 0.37 and P(Z < 0.63) = 0.73.
A. 0.63
B. None of them.
C. Approximately 1.00
D -0.33
E. None of the other choices is correct
E23
