Question

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are

shown in the table below.
Means and Mean Absolute Deviations of
Individual Times of Members of 4x400-meter Relay Track Teams
Team A
Team B
Mean
59.32 s
59.1 s
Mean Absolute Deviation
1.5 s
245
What percent of Team B's mean absolute deviation is the difference in the means?
9%
15%
25%
65%

Answer 1

A

Explanation:

Answer 2

9%

Explanation:

To find the percentage of Team B's mean absolute deviation difference in the means, you have to subtract the two means, 59.32-59.1.

After this, divide your answer the the mean absolute deviation of Team B, or you could put it all in the calculator or paper like this:

`(<strong>59.32-59.1</strong>)/(<strong>2.4</strong>)`

You'd then end with the decimal: .0916, which you would multiply by 100 to get about 9%