Question

What is the means-to-MAD ratio of the two data sets, expressed as a decimal to the nearest tenth?



Data Set 1: {85, 83, 90, 70, 87}
Data Set 2: {75, 74, 68, 83, 80}

Answer 1

we have to find the mean values of both data sets, first

Answer 2

do you know the first 1?

Answer 3

83

Answer 4

yes good job

Answer 5

do you know the second 1?

Answer 6

75

Answer 7

yes

Answer 8

now, we have to compute the MAD of each data set

Answer 9

for first data set, we have to compute these quantities:
85−83=...?83−83=...?90−83=...?70−83=...?87−83=...?

Answer 10

huh

Answer 11

85−83=2
83−83=0
90−83=7
70−83= -13
87−83=4

Answer 12

so the answer is 4?

Answer 13

Now we have to consider the absolute values of those quantities, so the MAD for first data set is given by the subsequent computation: MAD = 2 + 0 + 7 + 13 + 4 / 5 + ...?
MAD=2+0+7+13+45=...?

please note that I have considered +13, and not -13, since we have to keep the absolute values

Answer 14

26/5

Answer 15

MAD=26/5=5.2

Answer 16

then the ratio mean-to.-MAD, for first data set, is:
83/5.2=...?

Answer 17

15.96153846

Answer 18

15.96 rounded

Answer 19

thank u