peter wants to buy a book. the bookstore has 43 history books, 25 science books, 56 cookbooks, 5 books on…

peter wants to buy a book. the bookstore has 43 history books, 25 science books, 56 cookbooks, 5 books on sports, and 15 biographies. he picks a book at random. what is the approximate probability that peter picks a science book? 6% 17% 21% 25%

peter wants to buy a book. the bookstore has 43 history books, 25 science books, 56 cookbooks, 5 books on sports, and 15 biographies. he picks a book at random. what is the approximate probability that peter picks a science book? 6% 17% 21% 25%

Answer

Explanation:

Step1: Calculate total number of books

$43 + 25+56 + 5+15=144$

Step2: Calculate probability of picking a science book

The probability $P$ of an event is given by the formula $P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. Here, the number of favorable outcomes (science books) is 25 and the total number of outcomes (total books) is 144. So $P=\frac{25}{144}\approx 0.1736$. Converting to percentage, $0.1736\times100 = 17.36%\approx17%$

Answer:

17%