Question

anyone know this :(


The two dot plots below show the heights of some sixth graders and some seventh graders:

Answer 1

The mean absolute deviation (MAD) for the first set of data is 1.2 and the MAD for the second set of data is 0.4. Approximately how many times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders? (Round all values to the tenths place.)

3.2
3.0
1.5
0.8

Answer 2

@Michele_Laino

Answer 3

well, since MAD is a measure of variability, I presume it would be

MAD of 6th graders/MAD of 7th graders = 1.2/0.4 = ?

Answer 4

3

Answer 5

right

Answer 6

yes! I agree with @Vocaloid

Answer 7

so it would be 3.0

Answer 8

right

Answer 9

OK thanks!

Answer 10

good job! @Vocaloid