(Choose 1 answer)
The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a standard deviation of $45. What is the probability that a randomly selected teacher earns more than $525 a week?
Let P(Z < 0.78) = 0.7823, P(Z < -1.28) = 0.1003.
Α. 0.2177
B. 0.1003
C. 0.7823
D. 0.2823
E. None of the other choices is correct
Osh
