1,083,359 Pages
Welcome! Enter your question below. Please use words like "Who, What, Where, When, Why, How, etc..." in your question. Nothing to ask? Click here for a random, un-answered question.

s^2 = \frac{\sum_{i=1}^n \left(x_i - \overline{x_i} \right)^ 2}{n-1}


  • s in the sample variance.
  • n is the number in your sample.
  • x is each value in the sample.
  • \overline{x} is the sample mean.

If you don't understand that.

  • You subtract the average from a number in your sample and square it.
  • Do the same for each number in your sample and add up all the answers you get.
  • Divide by 1 less than the number of numbers in your sample.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.