Friday
March 24, 2017

Post a New Question

Posted by on Tuesday, December 11, 2012 at 3:36am.

A sample consists of the following data 7,11,12,18,20,22,25. What is the sample variance?

  • stat - , Tuesday, December 11, 2012 at 11:45am

    Find the mean first = sum of scores/number of scores

    Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

    I'll let you do the calculations.

  • stat - , Tuesday, December 11, 2012 at 11:54am

    I got 42.95

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question