423.Average Dart Distance
★★★geometric probabilityCh. 6 — Random Variables and Expectation444+ Problems in Probability
A dart lands uniformly at random on a circular dartboard of radius 1. Find the expected radial distance from the center.
Sign in to submit an answer and track it toward your stats.
Sign inHint
Uniform on the disk is not uniform in radius — the density of is proportional to .
Want timed drills, mental math, and a market-making game too? Try the full practice suite →