Im pretty sure the answer is 92.0 becauese
if you do 10.5x3.5 5x5=25 5x0+2=7 5x1=5 so that will be 57.5 then your going to do 3x5=15 3x0+1=4 3x1=3 that equals 34.5 then your going to add 57.5 +34.5
= 92.0
15 x 25 = 375
15 x 50 = 750
375 + 750 = 1,125
She has 1,125 books.
A. Coefficient of Variation