Mathematics

Probability, Probability Distributions, Statistics January 12, 2020

Expectation in Statistics

Expectation in statistics Expectation in statistics is the weighted average of a random variable with its probability. Suppose you toss three coins, then think of event to turn heads up. Random variable associates number of…

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Mathematics December 22, 2019

Sets and Relations

Sets Set is a collection of well-defined objects. Set’s Representation Basically, there are two ways of a set representation. Types of Set 1-Null Set A set is called null set if it is empty or…

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Matrix of a Quadratic Form in 3 Variables

Linear Algebra, Mathematics December 9, 2019

Quadratic Form in Linear Algebra

Quadratic Form in Linear Algebra An expression is called quadratic form in the variables x1, x2, x3,………….,xn over field F. Where aij i=1,2,3,….n, j=1,2,3,….m are elements of F. If aij are real then quadratic form…

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Mathematics December 8, 2019

Test for Convergence of Series

To understand test for convergence of a series you have to understand sequence and series and related concepts. Sequence A sequence S is a function whose domain is natural numbers and range is real numbers….

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Linear Algebra, Mathematics November 23, 2019

Matrix Representation of a Linear Transformation

Matrix Representation of a Linear Transformation Suppose U and V are two vector spaces over the same field F of dimensions m and n. Let A = {α1, α2, α 3,……,α3} and B={β1, β2, β3,…….,βn}…

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Applied Mathematics, Linear Algebra, Linear Algebra, Mathematics November 17, 2019

Caley-Hamilton Theorem

To understand Caley-Hamilton theorem you have to know about characteristic polynomial. Characteristic Polynomial If A is a square matrix of of size n * n, and I is identity matrix of the same size as…

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Applied Mathematics, Computer Science, Data Science, Machine Learning, Mathematics, Probability Distributions, Programming, Python November 9, 2019

Logistic Regression

Hyperbolic Functions These functions are very important in regression, classification and to build neural networks. Moreover, it is important to remember expression hyperbolic functions in the form of exponential functions. I have written the expressions…

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Applied Mathematics, Data Science, Machine Learning, Mathematics, Statistics October 30, 2019

Linear Regression in Statistics

Linear regression Linear regression refers to find out degree of relationship between two variables in the form of a linear function y=mx+c using statistical techniques. Where m is gradient and c is intercept on y…

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Applied Mathematics, Data Science, Machine Learning, Probability Distributions, Python, Statistics October 24, 2019

Poisson Distribution as a Limiting Case of Binomial Distribution

For large value of n binomial distribution asymptotically tends to Poisson distribution. Probability distribution function of binomial random variable is Probability distribution of Poisson random variable is Poisson Distribution as a Limiting Case of Binomial…

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Mean of Exponentially Distributed Random Variable X

Applied Mathematics, Data Science, Machine Learning, Statistics October 23, 2019

Exponential Probability Distribution

A random variable X is said to follow exponential distribution if it follows the following probability mass function. Exponential probability distribution is a continuous distribution. Probability Distribution Function of Exponentially Distributed Variable X It…

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Mathematics

Expectation in Statistics

Sets and Relations

Quadratic Form in Linear Algebra

Test for Convergence of Series

Matrix Representation of a Linear Transformation

Caley-Hamilton Theorem

Logistic Regression

Linear Regression in Statistics

Poisson Distribution as a Limiting Case of Binomial Distribution

Exponential Probability Distribution