Answer:
Step-by-step explanation:
We have given the 2 by 2 frequency table.
The probability that a randomly selected book is a nonfiction paperback =
(Number of nonfiction paperback books) / Total number of books
= 23 / 69
= 0.3333
The percentage of nonfiction paperback books is 33.33%
I might be wrong but 9
9*2=18
18+7= 25
25 square root = 5
Answer is 9