Phone interview. All questions were mental math. You are not allowed to use pen/paper, calculator or computer. Asked me to find the angle between the hour and minute hand if the time is 9:30. Also, what is the probability that the world series goes till the 7th game.
You're throwing a party in 24 hours and have purchased 1,000 bottles of wine. You are informed that one of these 1,000 bottles is tainted with a slow-acting poison that will kill the consumer 24 hours after intake. You have 10 rats that you can use to taste the wine. How many bottles will you be able to ensure are not poisoned by the time the party begins?
Sets A,B,C contains numbers 1-10. How many combinations are there that A<B<C?
How many integers within 100000 has two consecutive '1's
There’s a 60% chance it will rain on Saturday AND Sunday. What is the probability that there will be rain on the weekend.
Add up your phone number. Square it. Divide by 6. All in your head and you have 2 min.
Promised not to share the specific questions, but they were all Bayes' Rule. Think, "A% Chance of event happening one day, B% Chance of event happening the next, what's the probability it happened both days". That sort of thing.
Prob of at lease 2 coins heads up when throwing 3 fair coins
3Q of people gets off bus and seven gets on, and this thing repeats for three consecutive stops, how many passengers are there on the bus at the final stop.
given 2 uniform independet rv what is the prob that U1^2 - 4U2 < 0 .
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