SOLUTION: In a normal distribution with a mean of 90 and a standard deviation of 10, approximately what percentage of scores fall between 80 and 100?

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Question 1087369: In a normal distribution with a mean of 90 and a standard deviation of 10, approximately what percentage of scores fall between 80 and 100?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The range of 80-100 would be 90+%2B-+10 or mu+%2B-+1%2Asigma.
which is approximately 68% of the values.