Quote:

Originally Posted by **Bhappy** I need to calculate standard deviation for a biology test report. Does anyone know any websites with a step by step example of calculating standard deviation? I've had trouble finding anything for people who aren't good at math. |

1. Most scientific calculators can compute the SD of a given set of numbers.

2. MS excel has a number of useful functions, the main being STDEV.

3. Wiki believes 'if many data points are close to the mean, then the standard deviation is small; if many data points are far from the mean, then the standard deviation is large. If all data values are equal, then the standard deviation is zero.'

4. If your teacher wants you to work through the data analysis yourself, then forget all I have said, sharpen your pencil, and consult at length with a quality text book [if you can find one that isn't written by socialist-types

].