172.Median of Three Dice
★★★expected valueJane Street
A fair six-sided die is rolled three times. What is the expected value of the median of the three results?
Sign in to submit an answer and track it toward your stats.
Sign inHint
The die's distribution is symmetric about its own midpoint, and taking a median preserves that symmetry.
Want timed drills, mental math, and a market-making game too? Try the full practice suite →