Question

tyler collected data from two groups of runners. he shows his data in two data displays. choose the statement that correctly compares the data. the mean of group a is less than the mean of group b. the mean of group a is greater than the mean of group b. the means of the two groups are approximately equal.

Explanation:

Step1: Observe Group A distribution

Group A has more data - points in lower heart - rate intervals (48 - 54.9, 55 - 61.9, 62 - 68.9).

Step2: Observe Group B distribution

Group B has more data - points in higher heart - rate intervals (62 - 68.9, 69 - 75.9, 76 - 82.9).

Step3: Infer mean comparison

Since Group A has more values in lower intervals and Group B in higher intervals, the mean of Group A is less than the mean of Group B.

Answer:

The mean of Group A is less than the mean of Group B.