A coding question. You have a list of integers, how do you write a code to find the largest integer in the list and the number of times it appears?
Perguntas de entrevista de Quantitative Programmer
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well all questions were all right.
X and Y are two independent variables with uniform distributions form 0 to 1. Z = X + Y. What is the variance of Z. What is the correlation between X and Z? What does the distribution of Z look like?
Bag with 100 coins. One of them is double headed, the rest are fair. You flip it n times and get n heads. What would your intuition be on whether you have the double headed coin or not? What would the probability be that you have the double headed coin be as n goes to infinity? How many flips would it take for you to be 50% sure? You flip it seven times, what is the probability you have the double headed coin?
If I flip a coin 9 times, what is the minimum number of heads I need observe to reject the null hypothesis that the coin is unbiased towards heads to 90% confidence?
We both play a game where we flip a coin. You win if 3 heads appear, I win if 3 tails appear. What is the expected number of flips for the game to end.
There were a few questions on probability- tossing a coin 5 times, what is the expected value, when the game is likely to end if the winner needs to get 'head' three times in a row.
Specific questions on statistical models
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