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A math professor notices that scores from a recent test are normally distributed with a mean...

A math professor notices that scores from a recent test are normally distributed with a mean of 70 and a standard deviation of 4.

(a) What score do 75% of the students test scores fall below?
Answer:

(b) Suppose the professor decides to grade on a curve. If the professor wants 2.5% of the students to get an A, what is the minimum score for an A?
Answer:

Math   Statistics-And-Probability   
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