SOLUTION: a set of normally distributed student test scores has a mean of 80 and a standard deviation of 4. determine the probability that a random selected score will be between 74 and 82.

Algebra.Com
Question 311278: a set of normally distributed student test scores has a mean of 80 and a standard deviation of 4. determine the probability that a random selected score will be between 74 and 82.
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Find the zscore for 74 and 82.





P(74 < x < 82)=

RELATED QUESTIONS

A set of normally distributed student test scores has a mean of 80 and a standard... (answered by stanbon)
Assume that a set of test scores is normally distributed with a mean of 80 and a standard (answered by stanbon)
The mean score on a history test was 74.3 and the standard deviation was 5.7. Assuming... (answered by stanbon)
a student scores 62 on a geography test and 246 on a mathematics test. The geography test (answered by stanbon)
A student scores 62 on a geography test and 246 on a mathematics test. The geography test (answered by stanbon)
Assume that a set of test scores is normally distributed with a mean of 80 and a standard (answered by Fombitz)
Assume that a set of test scores is normally distributed with a mean of 80 and a standard (answered by ikleyn)
If a set of normally distributed test scores have a mean equal to 70 and a standard... (answered by robertb)
Assume that a set of test scores is normally distributed with a mean of 80 80 and a... (answered by Theo)