Question

the two - way table shows the number of books of each type in elizas home. what is the probability that a randomly selected reference book is hardcover? 0.25 0.4 0.6 0.75

Explanation:

Step1: Identify relevant values

The number of hard - cover reference books is 10, and the total number of reference books is 25.

Step2: Calculate the probability

The probability formula for an event is $P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. Here, the probability that a randomly selected reference book is hard - cover is $P=\frac{10}{25}$.

Step3: Simplify the fraction

$\frac{10}{25}=\frac{2}{5}=0.4$

Answer:

0.4