Posted by **Julie** on Sunday, February 20, 2011 at 7:40pm.

The scores on a standardized exam are normally distributed with mean= 50 and variance=16. (a) what percentage of the scores exceed 58? (b) what percentage of the scores lie between 38 and 54? (c) what is the 84th percentile of the distribution?

## Answer This Question

## Related Questions

- statistics - Assume that a set of test scores is normally distributed with a ...
- Algebra - I do not understand this homework at all. Any help or elaboration ...
- 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 ...
- 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 ...
- Statistics... I need help - . Assume that a set of test scores is normally ...
- statistics - Assume that a set of test scores is normally distributed with a ...
- Statistics - 5. Scores on a recent national statistics exam were normally ...

More Related Questions