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Can you help me answer the questions

Can you help me answer the questions-example-1
User Spoike
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1 Answer

3 votes

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.

User NBM
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