SOLUTION: The mean score for a standardized test is 1700 points. The results are normally distributed with a standard deviation of 75 points. If 10,000 students take the exam, how many would
Algebra.Com
Question 895113: The mean score for a standardized test is 1700 points. The results are normally distributed with a standard deviation of 75 points. If 10,000 students take the exam, how many would you expect to score above 1850 points?
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Q:
The mean score for a standardized test is 1700 points. The results are normally distributed with a standard deviation of 75 points. If 10,000 students take the exam, how many would you expect to score above 1850 points?
A:
Using Excel, the expected number of students to score above 1850 points is equal to =10000*(1-NORMDIST(1850,1700,75,TRUE))
The answer is 227.5 or 228 students (nearest whole number).
RELATED QUESTIONS
The scores for the mathematics portion of a standardized test are normally distributed... (answered by VFBundy)
A standardized test is designed so that the scores are normally distributed with a mean... (answered by dfrazzetto)
Suppose you have a mean standardized score of 1200 points with a standard deviation of... (answered by ewatrrr)
Suppose you have a mean standardized score of 1500 points with a standard deviation of... (answered by ewatrrr)
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 graduate selection committe wants to select the top 10% of applicants. On a... (answered by stanbon)
How do I solve the following problem based on the formula, Z = (x-m)/sd
The graduate... (answered by stanbon)
The graduate selection committee wants to select the top 10% of applicants. On a... (answered by stanbon)