Thursday

March 5, 2015

March 5, 2015

Posted by **Mark** on Monday, October 3, 2011 at 6:37pm.

Any help is super appriciated.. thanks sooo much.

- Math -
**PsyDAG**, Tuesday, October 4, 2011 at 8:40pmThe individual scores you have been given are raw scores.

Find the mean first = sum of scores/number of scores

Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

Standard deviation = square root of variance

I'll let you do the calculations.

**Answer this Question**

**Related Questions**

math - Find the z-score for the given raw score, mean, and standard deviation. ...

statistics - So if a depression scale has 30 items in it, and if an individual ...

statistics - So if a scale has 30 items in it, and if an individual gets a score...

math (statistics - John's z-score on a college entrace exam is 1.3. If the raw ...

math - Find the z-score for the given raw score, mean, and standard deviation. ...

math - Find the z-score for the given raw score, mean, and standard deviation. ...

math - what is the z-score for the given raw score, mean and standard deviation...

statistics - Eric has computed that it takes an average (mean) of 17 minutes ...

Math - find the z-scorerelated to the raw score,mean,and standard deviation. ...

statistics - The mean score for all individuals who took the Law School ...