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Scholastic Aptitude Test (SAT)

The scores of students taking the Scholastic Aptitude Test (SAT) are normally distributed with a mean u = 1035 and a standard deviation o = 131.

a) Determine the probability that a simple random sample of 15 students would earn an average score of 1000 or less.

b) Determine the probability that a simple random sample of 50 students would earn an average score of 1080 or greater.

c) Determine the probability that a simple random sample of 75 students would earn an average score between 1020 and 1060.

Solution Summary

The scores of students taking the Scholastic Aptitude Test (SAT) are normally distributed with a mean u = 1035 and a standard deviation o = 131.

a) Determine the probability that a simple random sample of 15 students would earn an average score of 1000 or less.

b) Determine the probability that a simple random sample of 50 students would earn an average score of 1080 or greater.

c) Determine the probability that a simple random sample of 75 students would earn an average score between 1020 and 1060.

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