You have 100 light bulbs, labeled from 1 to 100. Initially, all of them are off. You perform 100 rounds of toggling: On round 1, toggle every bulb (they all turn on). On round 2, toggle every 2nd bulb (bulbs 2, 4, 6, …). On round 3, toggle every 3rd bulb (bulbs 3, 6, 9, …). ... On round 100, toggle bulb 100. Toggling a bulb means: if it's on, turn it off; if it's off, turn it on. Question: After all 100 rounds, which bulbs are on?
Optimal Strategy/Stopping after how many rounds
do you have any competing offers
The interviewer described some kind of game, and asked for the optimal strategy.
Probability question regarding deck of cards and EV
expected value of some dice roll
Probability and expected value related questions
Probability and expected value of dice/cards.
Expected value between dice rolls
Classic drunk passenger probability problem
Viewing 2451 - 2460 interview questions