Question

The following data set contains the English scores for a sample of grade eleven students. 530...

The following data set contains the English scores for a sample of grade eleven students. 530 350 510 410 440 420 430 390 550 520 440 500 430 480 420 480 360 480 370 360 The following data set contains the scores of a mathematics test for a sample of grade eleven students. 33 22 20 27 28 20 31 25 25 20 20 28 20 24 25 29 24 24 26 30

Which measure would you use to compare the variability of the English and math scores data sets?

Standard Deviation

median

Coefficient of Variation

Coefficient of Skewness

Coefficient of skewness is not correct answer because skewness can be different for different data set,which is not a good choice to compare the variability between groups

Standard deviation is not correct answer because it only considers the standard deviation in each data group, but standard deviation can be incorrect to compare variability due to no standard calculation.

Median is not a measure of variability, so we will not use median

Coefficient of variation is correct answer because it uses the average or mean value for each data group along with their standard deviations. So, coefficient of variation is correct answer

option C is correct