SOLUTION: Suppose the test scores of 600 students are normally distributed with a mean of 76 and standard deviation of 8. The number of students scoring between 70 and 82 is

Question 755401: Suppose the test scores of 600 students are normally distributed with a mean of 76 and
standard deviation of 8. The number of students scoring between 70 and 82 is
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Suppose the test scores of 600 students are normally distributed with a mean of 76 and
standard deviation of 8. The number of students scoring between 70 and 82 is
-------
z(70) = (70-76)/8 = -3/4
z(82) = (82-76)/8 = +3//4
------------------
P(70< x <82) = P(-3/4< z <+3/4) = 0.5467
=============
Cheers,
Stan H.
============
RELATED QUESTIONS
A standardized test is designed so that the scores are normally distributed with a mean... (answered by dfrazzetto)

Test scores are normally distributed with a mean of 76 and a standard deviation of 10.... (answered by Edwin McCravy)

The scores on a college entrance examination are normally distributed with a mean of 550... (answered by VFBundy)

The scores of students on a standardized test are normally distributed with a mean of 300 (answered by stanbon)

Test scores are normally distributed with a mean of 76 and a standard deviation of 10.... (answered by math_tutor2020)

Please help me find the answer: Scores on a test are normally distributed with a mean of... (answered by stanbon)

Suppose ACT Mathematics scores are normally distributed with a mean of 20.8 and a... (answered by Boreal)

The scores on a certain test are normally distributed with a mean score of 43 and a... (answered by stanbon)