Answer:
mean absolute deviation is <em>8</em>
Step-by-step explanation:
to find mean absolute deviation, you subtract your mean from each of your values, and make them all positive, (even if u get a negative..)
then you add all your new answers up and divide by how many numbers there are (basically just find mean of your new set of data...)
<em>Hope this helps you in the future!!</em>
M(CE) = 78 + 78*4/26 = 90
First, you divide the fraction, and then you multiply it by 100.
So you get:



So, 5/16 is 31.25%
Hope this Helps! :)