Saturday

March 28, 2015

March 28, 2015

Posted by **kelly** on Tuesday, February 5, 2013 at 9:52pm.

Why is the computational formula easier to use when computing variance and standard deviation?

- stats -
**PsyDAG**, Wednesday, February 6, 2013 at 2:00pmThe sum of the deviations (unsquared) from the mean should always = zero, since the mean serves as a fulcrum (balance point) for the distribution.

You need to square the sum of the scores rather than the sum of the squared deviations (squaring*each*scores deviation from the mean).

**Answer this Question**

**Related Questions**

Quantitative Analysis - The "standard deviation of the sample score" divided by ...

statistics - Calculate SS, variance, and standard deviation for the following ...

statistics - Calculate SS, variance, and standard deviation for the following ...

Math Statistics - In general, what is the relationship between the standard ...

statistics - Calculate SS, variance, and standard deviation for the following ...

Statistics - Given that x is a normally distributed random variable with a mean ...

college math - 20. Calculate the range, variance, and standard deviation of the ...

Stastics - When we convert x-value to z- score and use Standard Normal ...

Statistics - Check my answers please! Thanks a lot. Five students reported that ...

MATH - A mean score on a standardized test is 50 with a standard deviation of 10...