## Mode

Mode is the value which occurs most frequently in a set of observations. For example, {6, 3, 9, 6, 6, 5, 9, 3} the Mode… Read More »

Mode is the value which occurs most frequently in a set of observations. For example, {6, 3, 9, 6, 6, 5, 9, 3} the Mode… Read More »

Mean is average of a given set of data. Let us consider below example 2, 4, 4, 4, 5, 5, 7, 9 the mean (average)… Read More »

Arithmetic mean, also called the average or average value, is the quantity obtained by summing two or more numbers or variables and then dividing by… Read More »

Given an array of n elements. The task is to print the array in a form such that the median of that array is maximum.… Read More »

This is an extension of the median of two sorted arrays of equal size problem. Here we handle arrays of unequal size also. Examples: Input… Read More »

In the world of Statistics, the very first thing to be done before any estimation is to create a Sample set from the entire Population… Read More »

Given two sorted arrays, a[] and b[], task is to find the median of these sorted arrays, in O(log(min(n, m)), when n is the number… Read More »

Prerequisite – Mean, Variance and Standard Deviation, Variance and Standard Deviation of an array Given a matrix of size n*n. We have to calculate variance… Read More »

Given three integers A, B and N the task is to find N Arithmetic means between A and B. We basically need to insert N… Read More »

Given an array of size N-1 and the mean of N elements (one element is not given). We need to find the missing value X… Read More »

Given a class interval and frequency of the class and the task is to find standard deviation of grouped data. Formula to find standard deviation… Read More »

Standard error of mean (SEM) is used to estimate the sample mean dispersion from the population mean. The standard error along with sample mean is… Read More »

The t test (also called Student’s T Test) compares two averages (means) and tells if they are different from each other. The t-test also tells… Read More »

Given a class interval and frequency distribution and the task is to find Arithmetic mean. In case of frequency distribution the raw data is arranged… Read More »

Given a two set of random variable, find Covariance. Covariance is a measure of how much two random variables vary together. It’s similar to variance,… Read More »