the two - way table shows the number of books of each type in elizas home.\n| |fiction|biographies|reference|…

the two - way table shows the number of books of each type in elizas home.\n| |fiction|biographies|reference|total|\n|--|--|--|--|--|\n|hardcover|28|2|10|40|\n|paperback|4|1|15|20|\n|total|32|3|25|60|\nwhat is the probability that a randomly selected reference book is hardcover?\n0.25\n0.4\n0.6\n0.75

the two - way table shows the number of books of each type in elizas home.\n| |fiction|biographies|reference|total|\n|--|--|--|--|--|\n|hardcover|28|2|10|40|\n|paperback|4|1|15|20|\n|total|32|3|25|60|\nwhat is the probability that a randomly selected reference book is hardcover?\n0.25\n0.4\n0.6\n0.75

Answer

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