Probability that half of coins are heads in n flips.
Quantitative Research Analyst Interview Questions
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What is the smallest number whose digits multiply to be 10,000
A bag has three coins in it which are visually indistinguishable, but when flipped, one coin has a 10% chance of coming up heads, another as a 30% chance of coming up heads, and the last has 60% chance of coming up heads. I randomly draw a coin from the bag and flip it, and the result comes up heads. What is the probability that if I reflip this coin, it will come up heads again? Why?
Minimum distance between two nodes or points
Game based on coins/dice. Win money depending on outcome. How much would you pay to play the game? If you were allowed to reflip the coin or reroll the dice then how much would you pay now?
General Probability questions & brain teasers
Q1: Coupon collector questions Q2: Union probability bound
Conditional probability with real-world context.
4 problems in total with the last two being dice problems. The problems themselves aren't difficult but to answer them accurately, fast on the spot is non-trivial. Forget about the green book - only do dice and card problems and scrape the whole glassdoor.
Even more math questions, with a bit of game theory.
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