Practice for your Citadel Securities interview

100 Light Bulbs Brain Teasers Symmetry Medium 100-Sided Die Probability and Statistics Expected Value Hard 3 Unique Marbles Probability and Statistics Combinatorial Analysis Easy 5 Descending Cards Probability and Statistics Expected Value Medium 90 Cents Please Probability and Statistics Combinatorial Analysis Medium Aces for All Probability and Statistics Combinatorial Analysis Easy Airplane Food Probability and Statistics Combinatorial Analysis Easy All Faces Probability and Statistics General Easy Free Animal Migrations Probability and Statistics Markov Chain Probability Easy Athletic Cats Probability and Statistics Conditional Probability Medium Back to Starting Point Brain Teasers Logical Medium Bankrupt Probability and Statistics Markov Chain Probability Easy Free Basketball Practice #1 Probability and Statistics Expected Value Medium Basketball Practice #2 Probability and Statistics Expected Value Hard Biased Coin #1 Probability and Statistics Expected Value Medium Biased Coin #2 Probability and Statistics Expected Value Easy Biased Coin #3 Probability and Statistics Expected Value Easy Biased Coin #4 Probability and Statistics Expected Value Medium Biased Coin #5 Probability and Statistics Expected Value Medium Birthday Puzzle #2 Brain Teasers Logical Hard Boats on a River Math Questions General Hard Bold Betting Strategy Probability and Statistics Markov Chain Probability Medium Both Card Colors Probability and Statistics General Easy Cash or Reroll Probability and Statistics Expected Value Easy Free Charm - Delta Decay Derivatives Theory Greeks Hard Checkmate Probability and Statistics General Easy Chip Eleven Probability and Statistics Conditional Probability Easy Choosing Blocks Math Questions General Easy Clocks and Hands Brain Teasers Logical Medium Coefficient of Variation Probability and Statistics Expected Value Hard Coin Race #2 Probability and Statistics Combinatorial Analysis Medium Coin Series #1 Probability and Statistics Markov Chain Probability Easy Coin Series #2 Probability and Statistics Markov Chain Probability Medium Coin Series #3 Probability and Statistics Markov Chain Probability Medium Coin Toss #1 Probability and Statistics Conditional Probability Medium Costly Reroll Probability and Statistics Expected Value Medium Count Number of Homogenous Substrings Programming String Manipulation Medium Dart Game Probability and Statistics Conditional Probability Medium Dead Batteries Probability and Statistics Combinatorial Analysis Easy Dice Game #1 Probability and Statistics Expected Value Hard Dice Game #2 Probability and Statistics Expected Value Hard Dice Order Probability and Statistics Combinatorial Analysis Medium Dice vs Coins Probability and Statistics Expected Value Medium Dice With Same Numbers Probability and Statistics Expected Value Medium Different Digits Probability and Statistics General Easy Divisible Throws Probability and Statistics Expected Value Easy Double Roll Pay Probability and Statistics Expected Value Easy Drunk Student #2 Probability and Statistics Expected Value Medium Engine or Wheels Probability and Statistics Conditional Probability Easy Escape the Square Probability and Statistics Markov Chain Probability Hard Fake News Probability and Statistics Conditional Probability Easy Farmers' Land Brain Teasers Logical Medium First Ace Probability and Statistics Expected Value Easy First Person to Say 50 Brain Teasers Logical Medium Fishermen Brain Teasers Logical Hard Five Ascending Cards Probability and Statistics General Medium Five In Million Probability and Statistics General Easy Flip 4 Coins Probability and Statistics Expected Value Medium Flipping a Coin #1 Probability and Statistics Combinatorial Analysis Easy Flipping a Coin #2 Probability and Statistics Combinatorial Analysis Medium Flowers in Bloom Probability and Statistics Expected Value Medium Fly vs Ant Math Questions General Medium Four Digit Difference Probability and Statistics General Hard Four Fives #1 Probability and Statistics General Easy Four Fives #2 Probability and Statistics General Easy Fox vs. Duck Brain Teasers Logical Medium Free Free Ticket Probability and Statistics Expected Value Hard Gambler's Ruin #1 Probability and Statistics General Easy Gambler's Ruin #3 Probability and Statistics General Medium Going to the Beach #2 Probability and Statistics General Hard Horse Race Brain Teasers Logical Medium House of Cards Brain Teasers Summation Easy How Many Children Probability and Statistics General Hard How Many Dogs Math Questions General Medium How Many Pairs Probability and Statistics Combinatorial Analysis Hard How Many Twos Brain Teasers Simplification Medium Infinite Chessboard Brain Teasers Out of the Box Hard Jumping Robots Probability and Statistics General Hard Jumping Toad Probability and Statistics Markov Chain Probability Medium Largest Sunflower Probability and Statistics Expected Value Easy Lower Die Probability and Statistics General Medium Magic 37 Math Questions General Hard Max Three Tails Probability and Statistics Combinatorial Analysis Easy Meeting Your Friend Probability and Statistics Combinatorial Analysis Medium More Tails Probability and Statistics Combinatorial Analysis Easy Multiply 3 Dice Probability and Statistics General Easy Free Odd Numbers Math Questions General Medium Old Phone #2 Probability and Statistics General Medium Optimal Spread Probability and Statistics General Hard Other Than Six Probability and Statistics Expected Value Easy Painted Cube Probability and Statistics Conditional Probability Hard Picking Balls #2 Probability and Statistics Combinatorial Analysis Medium Picking Balls #3 Probability and Statistics Combinatorial Analysis Medium Poker - Four of a Kind Probability and Statistics Combinatorial Analysis Easy Racing Cars Probability and Statistics Conditional Probability Medium Random Ant Probability and Statistics Markov Chain Probability Medium Remaining Coins Probability and Statistics Expected Value Medium Repeating Dice Probability and Statistics Expected Value Easy Rising Chips Probability and Statistics Combinatorial Analysis Medium Rolling Six Probability and Statistics Conditional Probability Easy Running Rabbit Probability and Statistics Combinatorial Analysis Medium Russian Roulette #1 Probability and Statistics Conditional Probability Easy Russian Roulette #2 Probability and Statistics Conditional Probability Medium Russian Roulette #3 Probability and Statistics Conditional Probability Medium Russian Roulette #4 Probability and Statistics Conditional Probability Medium Second Heads Probability and Statistics Conditional Probability Medium Set of Distinct Integers Math Questions General Easy Six Before Eleven Probability and Statistics Conditional Probability Easy Smallest Number to 10,000 Brain Teasers Logical Medium Specific Card #1 Probability and Statistics Expected Value Easy Specific Card #2 Probability and Statistics Combinatorial Analysis Medium Specific Card #3 Probability and Statistics Combinatorial Analysis Medium Spin in Two Regions Probability and Statistics Expected Value Medium Spread Set Math Questions General Hard Squares On Chessboard Math Questions General Medium Stock Price Coin Flip Probability and Statistics Combinatorial Analysis Easy Stop Sign Stroll Probability and Statistics Markov Chain Probability Medium Subset Makes Six Probability and Statistics Combinatorial Analysis Hard Subset of Numbers Brain Teasers Logical Hard Sum of Primes Probability and Statistics Combinatorial Analysis Easy Sum Remaining Odd Dice Probability and Statistics Expected Value Easy Sum to 3 Probability and Statistics Combinatorial Analysis Medium Sum Two Random Numbers Probability and Statistics General Easy Sum Until Success Probability and Statistics Expected Value Easy Surprise Headliner Probability and Statistics Conditional Probability Medium Ten Cards, No King Probability and Statistics Combinatorial Analysis Easy Tennis Game Probability and Statistics General Medium Tennis Match Mystery Brain Teasers Logical Hard Tennis Odds Probability and Statistics Game Puzzle Hard Tennis Tournament Probability and Statistics Expected Value Easy The King's Party Brain Teasers Out of the Box Medium Free The Last Chocolate Game Brain Teasers Logical Hard Three Blue Orbs Probability and Statistics Expected Value Medium Three Cards Difference Probability and Statistics Combinatorial Analysis Hard Throw a 6 #1 Probability and Statistics Expected Value Easy Throw a 6 #2 Probability and Statistics Expected Value Medium Throw a 6 #3 Probability and Statistics Expected Value Hard Throw a 6 #4 Probability and Statistics Expected Value Medium Throw Until Matched Probability and Statistics Expected Value Medium Toy Collection #2 Probability and Statistics Expected Value Easy Trailing Zeros Brain Teasers Logical Medium Transfer 3000 Apples Brain Teasers Logical Hard Triangle on Circle Math Questions General Medium Triple Match Probability and Statistics Combinatorial Analysis Medium Two Consecutive Fives Probability and Statistics Expected Value Medium Two Dice Difference Probability and Statistics Expected Value Easy Two Digit Number Probability and Statistics General Easy Two Hues Left Probability and Statistics Expected Value Hard Two Rolls Payoff Probability and Statistics Expected Value Easy Unfair Heads #1 Probability and Statistics Conditional Probability Medium Unfair Heads #2 Probability and Statistics Conditional Probability Medium Uniform Distribution #2 Probability and Statistics General Medium Uniform Distribution #3 Probability and Statistics General Medium Vacant Room Probability and Statistics Conditional Probability Hard Wheel of Eights Probability and Statistics Combinatorial Analysis Medium Which Die Was It Probability and Statistics Conditional Probability Medium