Question

The two dot plots below compare the forearm lengths of two groups of schoolchildren: Forearm Length, Group A 10 8 + 11 12 13 Length (inches) Forearm Length, Group B . 10 11 12 13 Length (inches) Based on visual inspection of the dot plots, which group appears to have the longer average forearm length?

A. Group B, because five children have a forearm length longer than 12 inches.
B. Group B, because a child in the group has the least forearm length of 10 inches.
C. Group A, because no child in the group has a forearm length longer

Answer 1

Group B appears to have the longer average forearm length.

Step-by-step explanation:

To determine which group appears to have the longer average forearm length, we can compare the median value of each group.

The median represents the middle value in a dataset. By visually inspecting the dot plots, we can see that the median of Group A is 11, while the median of Group B is 12. Therefore, Group B appears to have the longer average forearm length.