# Bindeshwar Singh Kushwaha

• Let X be a random variable, it is said to follow binomial distribution if it follows the following probability mass function. And it can have only non-negative values. The binomial distribution is a discrete […]

• Uniform Distribution or Rectangular Distribution
Uniform distribution or rectangular distribution is a continuous probability distribution.
Definition-
A random variable X is said to follow uniform or […]

•

Why is normal distribution is important?
To understand the question you have to go through the Central Limit Theorem.
Central Limit Theorem
According to central limit theorem if X1, X2, X3,……Xn are […]

• Correlation
Correlation measures  the relation between two variables  that how they are related.  And is denoted by r and  ρ moreover, the correlation quantifies the level of relationship between -1 to +1. If t […]

• Standard Deviation Variance and Covariance
Standard deviation, variance and covariance have very important applications in machine learning and data science. Further, they are closely related to each other. In […]

• Skewness and Kurtosis-
Introduction-
Skewness and Kurtosis are very important  concepts in statistics and have several applications.  In addition, they characterize the nature of data distribution which make d […]

• Measures of central tendency in statistics  refers to a value which characterizes all the the data.  Mean, median and mode are very important measures of central tendency. Measures of central tendency is very f […]

• Frequency distribution  in statistics refers to a graph or table which depicts or illustrate the occurrences of values.

Frequency distribution is very important in study of statistics, machine learning and […]

• UNIVERSITY GRANTS COMMISSION NET BUREAU NET SYLLABUS Subject :

COMPUTER SCIENCE AND APPLICATIONS Code No.:(87)
Unit – 1 :
Discrete Structures and Optimization Mathematical Logic:
Propositional and Predicate […]

• CSIR-UGC National Eligibility Test (NET) for Junior Research Fellowship and Lecturer-ship COMMON SYLLABUS FOR PART ‘B’ AND ‘C’ MATHEMATICAL SCIENCES

UNIT –  1
Analysis:
Elementary set theory, finite, co […]

• Vector Space-
A set V is called vector space on which two operations are defined.
2- Scalar Multiplication
Further, vector addition must follow the following properties and laws for vector […]

• To understand random variable first you have to know about events.  I will make you understand using examples.

What are events?

Example

Tossing three coins on which one head turns up

{HT,HH}

A […]

• Mutually Exclusive Events-
Two or more events events are said to be mutually exclusive if only one can happen at a time.
Example-1
In tossing a coin, event of tail up (T) and even of heads up (H) can not happen […]

• Linear  Independence of Vectors
Suppose α1, α2, α3, α4…………αn are vectors  of V(F) where F is field.  And there exist
scalers a1, a2, a3, a4………..an which
belong to field F. α1, α2, α3, α4…….. […]

• Ubuntu only provides an iso image of the operating system and you need to make a pen drive bootable to install ubuntu. I will show  step-by-step how to make a pen drive bootable using  USB I […]

• Often students get confused what are differences between divide and conquer and dynamic programming. Since they solve problems in similar nature. Divide the problem into sub-problems combine them to get solution. […]