Theo recorded the means and mean absolute deviations of his language arts and biology scores. he found the difference in the means of the scores of the two subjects. what is the approximate ratio of the difference in the means to each of the mean absolute deviations? means and mean absolute deviations of theo’s scores language arts biology mean 98 90 mean absolute deviation 3.5 5 a.2 b.5 c.18 d.28

Option: a is the correct answer.

a. 2

Step-by-step explanation:

We are given a table for the mean and mean absolute deviations as:

                                              Language Arts               Biology  

Mean                                            98                                90

Mean Absolute Deviation          3.5                               5

Hence, the difference in the mean is:

98-90=8

Now we calculate the ratio of difference in mean with each of the mean absolute deviation score.

1)    

which is approximately equal to 2.

2)

which is also approximately equal to 2.

Hence, the approximate ratio of the difference in the means to each of the mean absolute deviations is: 2