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Interview Puzzles

Quant Puzzles 9: Multinomials

rolling dice and picking paths

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NT Quant
Jun 19, 2023
∙ Paid

Happy Monday! We have two great combinatorics puzzles for you this week.

Solutions in pdf bottom of post

Question 1: Exactly 6 [Medium]

If I roll a die 36 times, what is the probability that each number appears exactly 6 times?

Question 2: Path Probability [Medium]

You are randomly traveling through a 3-dimensional grid-space. You started at the point (0,0,0)

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