Answer:
C and E
Explanation:
Select a statement that describes the height data. Mark all that apply. If A or C is marked, the other won't be marked because the two statements are contradictory. Option D will not be marked.
Group 1
mean = (103 + 112 + 108 + 120 + 114 + 125 + 109 + 121) / 8 = 114
MAD = (11 + 2 + 6 + 6 + 0 + 11 + 5 + 7) / 8 = 48 / 8 = 6
Group 2
mean = (120 + 85 + 138 + 126 + 92 + 133 + 128 + 90) / 8 = 114
MAD = (6 + 29 + 24 + 12 + 22 + 19 + 14 + 24) / 8 = 150 / 8 = 18.75
Mark C because 114 = 114.
Mark E because 18.75 > 3 * 6.
Don't mark D, because the data in Group 2 varies more than Group 1.
Don't mark B, because both groups have 8 children.