SOLUTION: The scores on an exam are normally distributed, with a mean of 79 and a standard deviation of 10. What percent of the scores are greater than 89?
* 68%
* 2.5%
* 1
Algebra ->
Probability-and-statistics
-> SOLUTION: The scores on an exam are normally distributed, with a mean of 79 and a standard deviation of 10. What percent of the scores are greater than 89?
* 68%
* 2.5%
* 1
Log On
Question 307588: The scores on an exam are normally distributed, with a mean of 79 and a standard deviation of 10. What percent of the scores are greater than 89?
* 68%
* 2.5%
* 16%
* 84% Answer by rapaljer(4671) (Show Source):
You can put this solution on YOUR website! The score of 89 represents 1 standard deviation above the mean. According to the Empirical Rule, on a normal distribution, there will be 16% of the scores above the mean.