SOLUTION: Suppose that the mean score of 2000 students in a certain exam is 65 points with a standard deviation of 5 points follows a normal distribution. How many of the students had a scor
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Question 1193054: Suppose that the mean score of 2000 students in a certain exam is 65 points with a standard deviation of 5 points follows a normal distribution. How many of the students had a score between 55 and 75? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! this is +/- 2 sd with n=2000
This is 95.45% of the population, so the number of people would be 1909, the product of the two numbers.
