Question

the means and mean absolute deviations of the individual times of members on two 4 x 400 - meter relay track teams are shown in the table below.

	means and mean absolute deviations of individual times of members of 4 x 400 - meter relay track teams
mean	59.32 s	59.1 s
mean absolute deviation	1.5 s	2.4 s

what is the ratio of the difference in the means of the two teams to the mean absolute deviation of team b?
0.09
0.15
0.25
0.65

Explanation:

Step1: Calculate difference in means

$|59.32 - 59.1|= 0.22$

Step2: Calculate the ratio

$\frac{0.22}{2.4}\approx0.09$

Answer:

0.09