Posted by **StudentD** on Wednesday, August 15, 2012 at 12:34pm.

In a psychology class of 100 students, test scores are normally distributed with a mean of 80 and a standard deviation of 5. Approximately what percentage of students have scores between 70 and 90?

A. 68%

B. 80%

C. 95%

D. 99%

## Answer This Question

## Related Questions

- Algebra - I do not understand this homework at all. Any help or elaboration ...
- Statistics - 18. The Intelligence Quotient (IQ) test scores are normally ...
- Statistics - 5. Scores on a recent national statistics exam were normally ...
- statistics - The scores for standardized test are normally distributed with a ...
- math - When Mrs. Myles gave a test, the scores were normally distributed with a ...
- Statistics - Suppose you administered an anxiety test to a large sample of ...
- statistics - Suppose you administered an anxiety test to a large sample of ...
- statistics - Assume that a set of test scores is normally distributed with a ...
- statistics - Using the 68-95-99.7rule. Assume that a set of test scores is ...
- Math-statistics - Assume that a set of test scores is normally distributed with ...

More Related Questions