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Statistics : Probability

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SAT Verbal Scores are normally distributed with a mean of 430 and standard deviation of 120, fined the following:
a. If one of the students is randomly selected, find the probability that student's Score is more than (440 + n)
b. If 100 students are randomly selected, find the probability that their mean score is more than (440 + n)

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Solution Summary

This solution contains step-by-step calculations to determine the probability of a selecting a student with a specific score or mean score.

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mu = 430, sigma = 120

(a) x = 465

z = (x - mu)/sigma = (465 ...

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