how do you find out the standard deviation of something?

Question

thanks

Answer 1

Dig out the instruction manual for your calculator. A lot of decent calculators have a data entry function and a button that allows you to work out the standard deviation. Very handy.

Answer 2

You can also do it in excel, that's a great way.

here's a link on how to do that.

http://www.gifted.uconn.edu/siegle/research/Normal/stdexcel.htm

And here is another link on a fiarly decent description on how to do it by hand.

http://www.gcseguide.co.uk/standard_deviation.htm

Answer 3

http://www.robertniles.com/stats/stdev.shtml