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☐ A
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.
A. 0.2177
B. 0.1003
C. 0.7823
D. 0.2823
E. None of the other choices is correct
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