Question

the table shows the distribution, by age and gender, of the 27.4 million people who live alone in a certain region. use the data in the table to find the probability that a randomly - selected person living alone in the region is
type an integer or decimal rounded to the nearest hundredth as needed.

Explanation:

Step1: Identify total number of people

The total number of people living alone in the region is 27.4 million (from the "Total" row and "Total" column of the table).

Step2: Identify number of people in 25 - 34 age - range

The number of people in the 25 - 34 age - range is 3.3 million (sum of male and female in the 25 - 34 age - row: 2.1+1.2 = 3.3).

Step3: Calculate probability

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 is the number of people in the 25 - 34 age - range, and the total number of outcomes is the total number of people living alone. So $P=\frac{3.3}{27.4}\approx0.12$.

Answer:

0.12