Standard Deviation / Mean / Median

[priyank12]

Can someone please provide me soome source from where I can study about standard deviation, mean, mode, median etc....

Thanks in advance !!!

[dmateer25]

Here is some basic info on mean, median, and mode.

https://www.purplemath.com/modules/meanmode.htm

This next link is about mean and median of consecutive and evenly spaced integers. This is something you definitely should know for the GMAT.

https://businessmajors.about.com/od/gmat ... Ttest1.htm