Posted by **joanne** on Sunday, May 29, 2011 at 9:21pm.

The distribution of cholesterol levels in teenage boys is approximately normal with u=170 and o=30. Levels above 200 warrent attention. Find the probability that boy has a cholesterol level greater than 225.

- elementary statistics -
**PsyDAG**, Sunday, May 29, 2011 at 9:46pm
Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion Related to the Z score you calculate.

- elementary statistics -
**tracey**, Sunday, June 12, 2011 at 6:14pm
how many seven digit telephone numbers are possible if digits can be repeated?

## Answer this Question

## Related Questions

- Statistics - The distribution of cholesterol levels of the residents of a state...
- statistics - The cholesterol levels of young women aged 20 to 34 vary ...
- statistics - Experts consider high serum cholesterol levels to be associated ...
- Statistics - Cholesterol levels of adult males are approximately normally ...
- Statistics - The serum cholesterol levels in men aged 18 to 24 are normally ...
- statistics - mean cholesterol is 175mg/dl..standard deviation =20mg/dl assume ...
- statistics - Cholesterol levels of adult males are approximately normally ...
- statistics - The following table shows the summary statistic of the cholesterol ...
- statistics - Cholesterol levels of adult males are approximately normally ...
- math (stats) - The cholesterol levels of adult American women are approximately ...

More Related Questions