348.First Ace
★★★expected valueCh. 6 — Random Variables and Expectation444+ Problems in Probability
Cards are flipped one at a time from a shuffled standard 52-card deck. On average, how many cards must you flip to see the first ace?
Sign in to submit an answer and track it toward your stats.
Sign inHint
The 4 aces split the other 48 cards into 5 gaps of equal expected size.
Want timed drills, mental math, and a market-making game too? Try the full practice suite →