What was the earliest day in last 100 years with minimal sum of digits.
Trading Interview Questions
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Standard probability questions involving coins and dice
angles between hands on a clock speeds of cars on a race track
Probability that a card is of a given colors/suit given some other 5 already extracted cards, robot game
You have 20 cards. 1 is black the rest are red. You keep drawing cards and get $1 for each red, but if you draw the black the game ends and you get nothing. How do you play and what’s the average payout? Now drawing the black card makes your score go negative, but you can continue drawing cards. What’s the strategy and expected payout now?
Phone: quantitative questions. On-site: trading games.
Probability of raining on a day
calculate expectation and probability staff
Expected value of a die roll, where you have the option to roll a second time if you want to (after observing the first roll value)
What is a 95% confidence interval for the number of taxis in New York City?
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