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 the number of reference hardcover books and total reference books

From the table, the number of reference hardcover books is \(10\), and the total number of reference books is \(25\).

Step2: Calculate the probability

The probability formula for an event \(A\) is \(P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\). Here, the event is selecting a hard - cover reference book. So \(P=\frac{10}{25}\).
Simplify \(\frac{10}{25}=\frac{2}{5} = 0.4\)

Answer:

\(0.4\)