Posted by **Jen** on Sunday, October 30, 2011 at 9:01pm.

A set of 50 data values has a mean of 18 and a variance of 4.

I. Find the standard score (z) for a data value = 20.

II. Find the probability of a data value < 20.

## Answer This Question

## Related Questions

- Math....please help - A set of 50 data values has a mean of 27 and a variance of...
- Someone plz help me....i need help this is due now - A set of 50 data values has...
- Statistics - A set of 50 data values has a mean of 27 and a variance of 16. I. ...
- MATH - A set of 50 data values has a mean of 27 and a variance of 16. I. Find ...
- stats - A set of 50 data values has a mean of 30 and a variance of 4. I. Find ...
- Homework Help - A set of 50 data values has a mean of 48 and a variance of 9. I...
- Statistics - A set of 50 data values has a mean of 35 and a variance of 25. I. ...
- Help plz!! Math.... - A set of 50 data values has a mean of 15 and a variance of...
- statistics - A set of 50 data values has a mean of 15 and a variance of 36. Find...
- Stats - A set of 50 data values has a mean of 15 and a variance of 36. Find the ...

More Related Questions