SOLUTION: In recent year, grade 10 new york state public school students taking a geometry mathematics assessment test had a mean raw score of 41 out of 88 total possible points with a stand

Question 758578: In recent year, grade 10 new york state public school students taking a geometry mathematics assessment test had a mean raw score of 41 out of 88 total possible points with a standard deviation of 8. Assume that the scores are normally distributed.
a) Find the probability that a student had a score between 30 and 40.
b) What percent of the students scored less than 45?
c) if 108 students took the test, how many had a test score of 49 and higher?
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Question:
In recent year, grade 10 new york state public school students taking a geometry mathematics assessment test had a mean raw score of 41 out of 88 total possible points with a standard deviation of 8. Assume that the scores are normally distributed.
a) Find the probability that a student had a score between 30 and 40.
b) What percent of the students scored less than 45?
c) if 108 students took the test, how many had a test score of 49 and higher?
--------------------------------------------------------------------------
Answer:
a. Enter =normdist(40,41,8,TRUE) - normdist(30,41,8,TRUE) on EXCEL, the
result is .
b. Enter =normdist(45,41,8,TRUE) on EXCEL, the
result is OR 69.15%.
c. Enter =108*(1 - normdist(49,41,8,TRUE)) on EXCEL, the
result is .

RELATED QUESTIONS
In a recent year, a sample of grade 8 Washington State public school students taking a... (answered by Boreal)

In a recent year, a sample of grade 8 Washington State public school students taking a... (answered by Boreal)

n a recent year, a sample of grade 8 Washington State public school students taking a... (answered by amarjeeth123)

I need all of these questions solved please I need help!!! 1.Find the area under the... (answered by ikleyn,Boreal)

In a recent year, grade 8 Colorado State public school students taking a... (answered by CPhill)

This year the number of students in a new school is 600. For the next 10 years the school (answered by josmiceli)

In aa U.S. shchool distrct, a standrdized reading test is used to test the performance of (answered by stanbon)

In a recent year, scores on a standardized test for high school students with a 3.50 to... (answered by Boreal)

A reading coordinator in a large public school system suspect that poor readers may test... (answered by CPhill)