Answer
$\approx0.15$
Work Step by Step
We know that probability$=\frac{\text{number of favorable outcomes}}{\text{number of all outcomes}}.$
The number of total outcomes is $29.3$ million.
The number of male people living alone in the ages of 45-64 is $4.3$ million.
Thus probability: $\frac{4.3}{29.3}\approx0.15$
