Answer
See graph below.
Work Step by Step
The question ONLY asks for a graph of the polar equation. It asks for a graphing device to graph the polar equation.
For the domain, $0 \leq θ \leq 2\pi$
Given $r = \sqrt {1 - 0.8 \sin ^2 θ}$
See the graph below.
If the domain is set to $\pi$, then only half of the graph will be present, so the domain is set to $2\pi$