Rewrite the following equation: -15 = 21 - m
-15 = m - 21
m - 21 = 15
-m +21 = -15

How can you find the mean absolute deviation (mad) for this set of data?

What are the solutions of the following system? y=-2x^2 y=x-2

According to the general equation for conditional probability, if p(ab) = 4/5 and p(b)= 5/6, what is p(a|b)? a. 8/9 b. 35/36 c. 24/25 d. 15/16