Question

what is the probability that the book chosen is a biography?
books in heros library
biography
4
romance
2
science fiction
14
adventure
10

Explanation:

Step1: Calculate total number of books

Total books = \(10 + 4+2 + 14=30\)

Step2: Calculate probability of choosing a biography

Probability \(P=\frac{\text{Number of biography books}}{\text{Total number of books}}\)
Number of biography books \(= 4\), total books \(=30\)
\(P=\frac{4}{30}=\frac{2}{15}\)

Answer:

\(\frac{2}{15}\)