Chapter 1.3, Problem 103E

To determine

To identify the variable which have the smaller standard deviation.

Answer to Problem 103E

Variable B

Explanation of Solution

Given:

  

In the graph of A, all the values are scatter more as compares to the Variable B because there is a peak in the middle of the graph which shows that peak and most of the values falls around the mean, because it can easily predict that mean value will ne to the peak, since the large amount of values are near to the peak which shows the lower sum of squares of deviation from the mean.

Therefore, there will be low standard deviation in Variable B.