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1. Suppose that a student’s verbal score X from next year’s Graduate Record Exam can be...

1. Suppose that a student’s verbal score X from next year’s Graduate Record Exam can be considered an observation from a normal population having mean 547 and standard deviation 120. please explain and show work

(a) What is the probability that a randomly selected student has verbal score more than 600?

(b) What is the Probability that the student scores below 400?

(c) Find the score corresponding to the 90th percentile (top 10th percentile) of the distribution.

Math   Statistics-And-Probability   
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TOPIC:Use of the Normal distribution.

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