Solve —(in photo)— and explain whether the answer is rational or irrational

(B)5

Step-by-step explanation:

It is given that 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.

Thus, the difference in the means of the scores of the two subjects=|98-90|=8

Now, the  difference in the mean absolute deviation of the scores of the two subjects=|5-3.5|=1.5

We have to find the ratio of the difference in the means to each of the mean absolute deviations, then

≈

Hence, option B is correct.