Posted by **terry** on Monday, July 19, 2010 at 6:48pm.

Assume that a set of test scores is normally distributed with a mean of 100 and a standard devaiton of 20. Use teh 68-95-99.7 rule to find the following quantities:

a. percentages of scores less than 100

b. relative frequency of scores less than 120

c.percentage of scores less than 140

## Answer This Question

## Related Questions

- statistics - assume that a set of test scores is normally distributed with a ...
- statistics - Using teh 68-95-99.7rule. Assume that a set of test scores is ...
- statistics - Assume that a set of test scores is normally distributed with a ...
- statistics - Using the 68-95-99.7 rule: Assume that a set of test scores is ...
- statistics - Using the 68-95-99.7 rule: Assume that a set of test scores is ...
- statistics - Assume that a set of test scores is normally distributed with a ...
- statistics - using the 68- 95-99.7 rule: Assume that a set of test scores is ...
- statistics - Assume that a set of test scores is normally distributed with a ...
- statistics - Assume that a set of test scores is normally distributed with a ...
- Statistics - Assume that a set of test scores is normally distributed with a ...

More Related Questions