Saturday

December 20, 2014

December 20, 2014

Posted by **jo** on Monday, September 19, 2011 at 7:21pm.

- statistics -
**PsyDAG**, Tuesday, September 20, 2011 at 2:51amFind 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

Z = (score-mean)/SD

I'll let you do the calculations.

**Answer this Question**

**Related Questions**

Statistics - Given that a population of scores is normally distriibuted with u=...

statistics - can you please explain the following so that I can understand how ...

Statistics-Help please?? - Given a mean of 25 and a standard deviation of 2.3, ...

statistics - Provide the Z score and the critical value. Raw score of 112, ...

statistics - Calculate the z-score for each set of data. Determine who did ...

Statistics in Psychology - Please help me with both of these questions. THANK ...

Probability and Statistics - For question 1, here's the numbers you use: {20, 18...

Math - Score Percentile Score Percentile Score Percentile Score Percentile -3.5 ...

Data and Statistics - Calculate the z score for an ACT score of 12, a mean of 20...

Statistics: IQ Score (X) and Exam Score (Y) - Assuming that the regression ...