Select the correct answer.
the table lists the test scores william and andre received on five math assessments.

william’s scores andre’s scores: 90/ 74/ 73/ 87/ 82
89
97
78
81
91

which statement best describes the difference of the mean of the two data sets?

a.
it is equal to about 0.5 times the mean absolute deviation of either data set.
b.
it is equal to about 1 times the mean absolute deviation of either data set.
c.
it is equal to about 1.5 times the mean absolute deviation of either data set.
d.
it is equal to about 2 times the mean absolute deviation of either data set.