Weekly Salaries of Teachers - Normal Distribution
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The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a standard deviation of $45.
a. What is the probability that a randomly selected teacher earns more than $525 per week?
b. What is the probability a randomly selected teacher earns less than $435 per week?
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Solution Summary
The solution determines what the probability of a randomly selected teacher that earns more or less than a specific amount a week.
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M = 490, SD = 45
z = (X - M)/SD
(a) z = (525 - 490)/45 = 0.77
Probability that a randomly ...
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