Question

The graph shows the number of each kind of book in Hero's personal library. A book is chosen randomly. What is the probability that the book chosen is a biography?
A)2/15
B)4/15
C)1/30
D)1/4

Answer 1

Answer: A is the right answer .Probability of the book chosen is a biography is $\frac{2}{15}$.

Step-by-step explanation:

According to the given graph or pie chart

The number of biography books=4

Total books= Romance books+ Science fiction books+ Biography books+Adventure books =2+14+4+10=30

Let B be the event of choosing a biography book then

Probability of the book chosen is a biography P(B)=$=\frac{biography\ books}{total\ books}=\frac{4}{30}=\frac{2}{15}$

Therefore, Probability of the book chosen is a biography is  $\frac{2}{15}$.

Answer 2

14 science fiction, 2 romance, 4 biography, 10 adventure...total of 30 books

P(biography) = biographies / total books = 4/30 which reduces to 2/15 <=