6.4. Applications of Variance and Standard Deviation http://www.ck12.org
the sum of the squared variations. You could also use the CATALOG menu to find the mean of the data, but since
you are now familiar with 1-Var Stats, you can use this method.
The mean of the data is approximately 63.7. L2 will now be renamed L1− 63 .7 to compute the values for(x−x).
Likewise, L3 will be renamed L2^2.
The sum of the values in L3 divided by the number of data values (36) is the variance of the bowling averages.