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Probability Distribution

Last Updated: 05 September 2023

Probability Distribution of a Random Variable (X) shows how the Probabilities of the events are distributed over different values of the Random Variable. When all values o...read more

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Maths-Calculators

Last Updated: 20 January 2023

Bayes' Theorem is named after Reverend Thomas Bayes. It is a very important theorem in mathematics that is used to find the probability of an event, based on prior knowled...read more

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Python - Binomial Distribution

Last Updated: 16 July 2020

Binomial distribution is a probability distribution that summarises the likelihood that a variable will take one of two independent values under a given set of parameters....read more

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Expected number of coin flips to get two heads in a row?

Last Updated: 07 December 2018

Problem : Find the expected number of times a coin must be flipped to get two heads consecutively?Solution : The key is to observe that if we see a tail on the first flip, ...read more

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Shannon-Fano Algorithm for Data Compression

Last Updated: 07 June 2023

DATA COMPRESSION AND ITS TYPESData Compression, also known as source coding, is the process of encoding or converting data in such a way that it consumes less memory space...read more

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Finding the probability of a state at a given time in a Markov chain | Set 2

Last Updated: 07 September 2022

Given a Markov chain G, we have the find the probability of reaching the state F at time t = T if we start from state S at time t = 0.A Markov chain is a random process co...read more

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Probability of getting a sum on throwing 2 Dices N times

Last Updated: 25 September 2022

Given the sum. The task is to find out the probability of occurring that sum on the thrown of the two dice N times.Probability is defined as the favorable numbers of outco ...read more

Probability that two persons will meet

Last Updated: 31 July 2022

Problem Statement: Two persons are supposed to meet a spot at a time interval of one hour. The person who comes first will wait for a maximum of 15 minutes for the second ...read more

Probability of cutting a rope into three pieces such that the sides form a triangle

Last Updated: 29 August 2018

Given a rope. We have to find the probability of cutting a rope into 3 pieces such that they form a triangle.Answer: 0.25Explanation: Let the length of rope be 1 unit. We ...read more

Puzzle | Is it Raining

Last Updated: 18 January 2023

A Geek is about to get a plane to Hyderabad. Geek wants to know if it's raining. Geek calls 3 random friends staying at Hyderabad to ask this question. Each friend has a 2 ...read more

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Select a Random Node from a tree with equal probability

Last Updated: 18 November 2022

Given a Binary Tree with children Nodes, Return a random Node with an equal Probability of selecting any Node in tree.Consider the given tree with root as 1. 10 / ...read more

Probability of Knight to remain in the chessboard

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Given an NxN chessboard and a Knight at position (x,y). The Knight has to take exactly K steps, where at each step it chooses any of the 8 directions uniformly at random. ...read more

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Aptitude | Probability | Question 1

Last Updated: 28 June 2021

Given a coin which gives HEADS with probability 1/4 and TAILS with 3/4. The coin is tossed k times. What is the probability that we get at least k/2 HEADS is l...read more

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Conditional Probability

Last Updated: 05 September 2023

Conditional Probability is one of the types of probability in probability theory, where the probability of one event is dependent on the other event already happened. As t ...read more

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Birthday Paradox

Last Updated: 19 May 2023

How many people must be there in a room to make the probability 100% that at-least two people in the room have same birthday?Answer: 367 (since there are 366 possible birt ...read more

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