Trading Interview
Practice problems for Trading Interview
- At Least 4 Heads in 7 Coin Flips
- Birthday Day-of-Week Coincidence for Three People
- Bowling Ball Weight Scaling by Diameter
- Call Option vs Stock: Key Advantage
- Chicken Egg Production Rate
- Clock Angle at 10:45
- Clock Hand Angle at 3:15
- Clock Hand Angle at 9:45
- Combined Work Rate Problem
- Combined Work Rate: Two Painters
- Eight-Letter Word with Letter Values Summing Below 50
- Expected Flips Until First Heads on Fair Coin
- Expected Heads in 100 Coin Flips
- Expected Value of Dice Rolls
- Next Clock Hand Overlap After Noon
- Next Term in Fibonacci Reciprocal Sequence
- Probability All Three Coin Flips Match
- Probability of Even Heads in N Coin Flips
- Probability Two Dice Sum to Seven
- Scaling Bowling Ball Weight by Diameter
- Sum of Odd Numbers from 1 to 50
- Bayesian Urn Selection After Drawing $10 Chip
- Calculate Group Average Salary While Keeping Individual Salaries Private
- Calculate Test Score with Penalty for Wrong Answers
- Cards Needed for 100-Level Card Tower
- Circular Seating in Birthday Order
- Conditional Card Drawing: Heart Probability
- Creating Fair Coin from Biased Coin
- Die Roll with Optional Reroll
- Die Rolling Game: Maximize Sum Without Busting
- Evaluate Betting Strategy for HHH with Given Odds
- Even Sum from Three Random Primes
- Exact Probability of 50 Heads in 100 Fair Coin Flips
- Expected Card Value in Standard Deck
- Expected Maximum of Two Dice
- Expected Sum Given At Least One Six
- Expected Value vs Risk: Coin Flip Betting Games
- Expected Winnings in Dice Comparison Game
- Find the Heavier Ball in 12 with Minimum Weighings
- Geometric Series and Quick Probability Calculations
- HHT vs HTT Pattern Race
- Kelly Fraction for an Even-Money Bet
- Key Difference Between Option and Futures Pricing Inputs
- Largest Amount Unattainable with 5¢ and 11¢ Stamps
- Largest Number with Digit Product 120
- Mental Long Division: 2 Divided by 17 to Four Decimals
- Minimum Races for Top 3 of 20 Horses
- Mutilated Chessboard and Domino Tiling
- Odd Heads with Mixed Fair and Biased Coins
- Optimal Question for Guessing Coin Sequence
- Pattern Recognition: Find Next Term
- Probability of Game 7 in Best-of-Seven Series
- Probability of Strictly Increasing Die Sequence
- Probability Product of Two Dice is a Perfect Square
- Quick Mental Math: 0.01-Wide Interval for 3/12
- Red-Black Card Game with Optional Stopping
- Secure Average Salary Computation
- Simpson's Paradox: Identifying the Scenario
- Smallest Multiple of 77 Exceeding 70,000
- Smallest Number with Digit Product 10,000
- Smallest Number with Digit Product 216
- Strategic Dice Betting with Information Asymmetry
- Tennis Game Win Probability from 30-30 with 70% Point Advantage
- Tennis Win Probability from Deuce with 60% Point Win Rate
- Weekend Pizza Probability
- Weekend Rain Probability (Independent Events)
- Dice Ratio Game: Choose Best Payout
- Expected Count of Uniform Variables Until Sum Exceeds One
- Guaranteed Outcome Betting on Seven-Game Series
- Minimum Races to Find Top 3 of 25 Horses
- Optimal Door Selection: Three Coin Tosses
- Padel Game Win Probability at 9-9 Against Stronger Opponent
- Sports Betting Arbitrage with Plus Odds
- Taxman Game: Maximize Your Score (N=6)
- Three Fishermen Dividing Fish
- Unique Pairwise Digit Sums: Why 7 Digits Fails
- Weekend Rain Probability Bounds (No Independence Assumption)
- Winner's Curse Bidding Problem
- Moser's Circle Problem: Regions from N Points