Answer
P(35 to 44 years of age and uses social media) $=\frac{89}{530}\approx0.168$
Work Step by Step
The sample space: 530 adult Americans. So, N(S) = 530.
According to the cell in the first row, second column: N(35 to 44 years of age and uses social media) = 89.
P(35 to 44 years of age and uses social media) =
$\frac{N(\text{35 o 44 years of age and uses social media})}{N(S)}=\frac{89}{530}\approx0.168$
