Solution
= Solution
For a <uniform distribution> on the unit square, probability is the ratio of <areas>. The <incircle> has radius $1/2$, so
$$
\boxed{P(\text{inside circle})=\frac{\pi(1/2)^2}{1}=\frac\pi4.}
$$
= Solution
For a <uniform distribution> on the unit square, probability is the ratio of <areas>. The <incircle> has radius $1/2$, so
$$
\boxed{P(\text{inside circle})=\frac{\pi(1/2)^2}{1}=\frac\pi4.}
$$