SOLUTION: Suppose that the distribution of test scores on a statistics exam are
normally distributed with a mean of 70 and a standard deviation of 11.
What proportion of the class scored m
Algebra.Com
Question 928926: Suppose that the distribution of test scores on a statistics exam are
normally distributed with a mean of 70 and a standard deviation of 11.
What proportion of the class scored more than 79 on the test? Round
your answer to the nearest ten-thousandth (4 decimal places).
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
mean of 70 and a standard deviation of 11.
p(x > 79) = P(z > 9/11) = normalcdf(.8182, 100) = .2066 0r 20.66%
RELATED QUESTIONS
Hi. Please help me solve stats question
Suppose scores on exams in statistics are... (answered by Theo)
Statistics. Please help. Thankyou in advance!
Suppose the scores for a college entrance... (answered by Boreal)
Scores for a particular standardized test are normally distributed with a mean of 80 and... (answered by Boreal,Edwin McCravy)
Scores for a particular standardized test are normally distributed with a mean of 80 and (answered by ewatrrr)
The scores on an exam are normally distributed, with a mean of 77 and a standard... (answered by Edwin McCravy)
The class exam results were normally distributed, with a mean of 80 and standard... (answered by reviewermath)
The scores on a statistics test were normally distributed with a mean of 78 and a... (answered by Theo)
Scores on a recent national statistics exam were normally distributed with a mean of 90... (answered by rothauserc)
Suppose the scores of students on a Statistics course are Normally distributed with a... (answered by Glaviolette)