optiver | Software Engineer | Interview Experience
Interview Date: Not specified
Result: Not specified
Difficulty: Not specified
Interview Process
The interview consisted of multiple rounds focusing on probability and problem-solving skills. Each round included questions that tested the candidate’s analytical thinking and mathematical reasoning.
Technical Questions
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Probability of Different Face Value
Question: You throw one dice two times. What is the probability that the 2nd throw has a different face value than the first throw?
Answer: 0.75 -
Probability of New Top Card Being Red
Question: Take a shuffled deck of 52 playing cards and throw the first top 10 cards in the bin. What is the probability that the new top card is red?
Answer: 0.5 -
Probability of Two Dice Summing to 11 or 12
Question: You throw two dice. What is the probability that the two dice add up to 11 or 12?
Answer: 0.1 -
Probability of Same Outcome in Coin Flips
Question: You flip a coin 3 times. What is the probability that the outcome is the same for all flips (all Heads or all Tails)?
Answer: 0.25 -
Probability of Winning a Prize
Question: 61 coins are randomly put into 15 boxes. If any box contains more than 4 coins, you win a prize. What is the probability that you win a prize?
Answer: 1
Tips & Insights
- Focus on understanding probability concepts and practice solving related problems.
- Be prepared for logical reasoning questions that require quick thinking and clear explanations.