contestada

A bookshelf contains 9 mysteries, 7 biographies, and 4 science fiction books. If a book is selected at random. What is the probability of selecting a biography or a mystery?

Respuesta :

facundo3141592

The probability of selecting a biography or a mystery is 0.8

How to get the probability?

We assume that all the books have the same probability of being randomly selected.

The probability of getting a particular type of book is given by the quotient between the number of these books and the total number of books.

Here we want to find the probability of selecting a biography or a mystery, there are 9 mysteries and 7 biographies, and a total of 20 books in the shelf, so the probability is:

P = (7 + 9)/20 = 16/20 = 4/5 =0.8

The probability is 0.8

If you want to learn more about probability:

https://brainly.com/question/251701

#SPJ1

Otras preguntas