Two groups of students were asked how far they lived from their school. The table below shows the distances in miles:
2 answers:
The mean distance for a group is the sum of individual numbers over the number of data. The mean distance of Group A is (1+1.5+3+3.2+2.8+1.5+1.8+2.5+2.2)/9=2.17 The mean distance of Group B is (<span>2+2.5+3.2+3+1.8+2.4+3+1.5+1.8)/9=2.36. Therefore, the mean is greater for group B than group A, but not doubling.</span>
answer:
A. it is equal for group A and group B
step-by-step explanation:
group A (distance in miles) 1 1.5 3.03 3.2 2.8 1.5 1.8 2.5 2.2
group B (distance in miles) 2 2.5 3.23 1.3 1.8 2.4 3 1.5 1.8
group A mean = (1 + 1.5 + 3.03 + 3.2 + 2.8 + 1.5 + 1.8 + 2.5 + 2.2)/9 = 19.53/9 = 2.17
group B mean = (2 + 2.5 + 3.23 + 1.3 + 1.8 + 2.4 + 3 + 1.5 + 1.8)/9 = 19.53/9 = 2.17
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