Search results for probability


Answer In probability theory, the expectation of a random variable is the weighted average of all possible values that this random variable can take o ...
Question: You are playing a roulette game in a casino. But unlike a normal wheel, you are lucky enough to stumble upon a promotional wheel that has b ...
Question "Let's play a game of Russian roulette*", begins one interview stunt that is going the rounds at Wall Street investment banks. "You are tie ...
Interviewed for position: Program Manager, SDE, Test, Analyst
"You flip a fair coin 20 times in a row and it comes up heads every single time. You flip the coin one more time. What is the probability of tails on ...
Full question:

Suppose you're on a train that has 1 to 100 carts. Given you are in fifth cart, what's the expected number of the carts?
Company where asked this question: CSFB
Interviewed for position: quant jobs
The task is to write a function which at any give point would return random character with equal proability of any character being read from infinite ...
FMEA - Failure modes and Effect analysis is a technique to identify the potential problems in system design or process by examining the effects of low ...
On an empty NxN chessboard, a knight starts from a point (say location x, y) and it starts moving randomly, but once it moves out of board, it can’t ...