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Uncorrelated vs. Independent

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Information propagation

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Three wise men

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Darting

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Find the majority element

(1) If the correlation between two normal random variables is 0, can we say these two random variables are independent?

(2) What if two t-distributions with same parameter?

Tags: statistics correlation

n people, each has some information denoted by i_n.

Every time, one people A can only make a phone call to another people B to

tell B the information he ...

Tags: brainteaser

Three wise men are locked in three rooms. Each day there there is, or there

is no light in each room.

During a certain finite initial period there is no ...

There are two identical circles on the wall, not overlapped. you throw arrow to the wall, if hit inside any of the circles, you get 1, if outside, you get ...

Given an array of size N, determine if there is a majority element that has appeared more than N/2 times.

Output this element if the answer is Yes.