Changes in Statistical Information
What effect does changing the data have upon
statistical information?
Let's examine a few situations with the aid of
the graphing calculator.
Now, compare the two variances to ascertain what is happening
when the data is multiplied by a factor of 8.
We notice that 8.25 x 64 = 528 The variance is multiplied by a factor of 64, when the data is multiplied by a factor of 8. 




Now, compare the findings. From examining the calculations, we know that the mean, the standard deviation (both sample and population), the minimum, the first quartile, the median, the third quartile and the maximum are also tripled.

In both of these examples, the 1 Var Stats allowed us to quickly examine the data to see what was happening when the data was rescaled. 
Finding Your Way Around
TABLE of CONTENTS