Generate Fair Results from a Biased Coin

In this post, we will discuss how to generate fair results from a biased coin which prefer one side of the coin over another, and returns TAILS with p probability and HEADS with (1-p) probability

Find Probability that a Person is Alive after Taking N steps on an Island

Given an island in the form of square matrix and a point inside the matrix where a person is standing. The person is allowed to move one step in any direction (right, left, top, down) on the matrix. If he steps outside the matrix, he dies. Calculate the probability that he is alive after he …