The average beginning annual salary for teachers in California is $41,181. Assume that this is a normal distribution with a standard deviation of $725. One quarter of starting teachers in California will make " at least" much money per year?
P(z>z0) = 0.25
z0 = 0.674
(x-41181)/725 = 0.674
x = 41181+0.674*725= $41670
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