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 2 5 18 28

(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.

false

step-by-step explanation:

4y - 6 + 4y^2 - 9

before simplifying this contains 4 terms

after simplifying

4y -15 + 4y^2

it contains 3 terms

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^