Answer
a. 0.1
b. 0.9
Work Step by Step
a.
On the graph, find the blue vertical bar corresponding to men, 25-34
(second from the left).
Its height (read from the y-axis) is 0.1.
If E is the given event, (a randomly selected man between the ages of 25 and 34 has cardiovascular disease), then
P(E)=0.1
b.
Apply Complement Rules of Probability,
$P($not $E)=1-P(E) =1-0.1=0.9$
