Why do you want to work at Jane Street? Asked to write a program (in language of choice) that took a name and a sequence of characters (as, for example, the name "jump" would be assigned the sequence 'ABC' in a simple video game). Needed one method to store name-sequence pairs, and one method that would print any names associated with a sequence of characters entered by the user.
various mathematical puzzles mostly to be solved by applications of probability insights; rather time constrained
Some mahcine learning questions some math questions
They provide ample preparation material.
ten sided die from 1-10. two players A,B guess the roll beforehand. A before B. What should A and B choose
What is the expected value of a certain strategy for a carnival game with certain probabilities of outcomes. Good to know the expected value of a geometric random variable with probability p
About provability and toss and anything related to them
a) Flip 4 coins and you get paid $1 for every head, what is the expectation of earnings? b) If you have a magic wand and could use it to tap on every pair of heads/tails to flip them again, what is the expectation of earnings?
asked probability games and ev questions
Expected value of dice game
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