<PRE><B>Question 758578</B>
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? 
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Answer:
a. Enter =normdist(40,41,8,TRUE) - normdist(30,41,8,TRUE) on EXCEL, the
  result is {{{highlight(0.3657)}}}.
b. Enter =normdist(45,41,8,TRUE)  on EXCEL, the
  result is {{{highlight(0.6915)}}} OR 69.15%.
c. Enter =108*(1 - normdist(49,41,8,TRUE))  on EXCEL, the
  result is {{{highlight(17)}}}.
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