Wednesday

July 23, 2014

July 23, 2014

Posted by **Jen** on Wednesday, October 12, 2011 at 6:28pm.

- Help plz!! Math.... -
**PsyDAG**, Thursday, October 13, 2011 at 11:47amZ = (score-mean)/SD

SD^2 = variance

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

- Help plz!! Math.... -
**Jennifer**, Thursday, October 13, 2011 at 12:50pmI apologize...thank you....so is it

A data point of 20 is one standard deviation above the mean of 15, so the standard or "z" score is 1.0

**Related Questions**

Someone plz help me....i need help this is due now - A set of 50 data values has...

MATH - A set of 50 data values has a mean of 18 and a variance of 4. I. Find the...

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 ...

Statistics - A set of 50 data values has a mean of 15 and a variance of 25. Find...

Can someone help me please? - A set of 50 data values has a mean of 15 and a ...

stats - A set of 50 data values has a mean of 30 and a variance of 4. I. Find ...

Math....please help - A set of 50 data values has a mean of 27 and a variance of...

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. ...