The answer is to the question is b. 55
<span>Given:
Last Week This Week
Mean 3.5 in. 2.7 in.
Mean Absolute Deviation 1.2 in. 0.5 in
If this is what the table looks like, my answer is </span><span>(C) 0.8/0.5
</span><span>The difference of the two means to this week’s mean absolute deviation is?
The two means are 3.5 in and 2.7 in. The difference would be 3.5 - 2.7 = 0.8
This weeks' mean absolute deviation is 0.5 in according to the table.
So, 0.8 / 0.5 is the answer.</span>
It says that you need to divide 2 exponents with the same base, you keep the base and subtract the powers, its kind of like reducing fractions! :)