# Research Writing

• ## Multiple linear regression definition/method/Advantages

The multiple linear regression is a method used to measure the relationship which could save some independent variables in a statistical study. These…

• ## Statistical variables definition/Types/more variables

The variables are the characteristics of individuals within a population. These variables are classified according to different criteria, they can also form part…

• ## Different types of probability distribution/Importance

In statistics, economics and many other areas, it is necessary to infer and decide on situations in which there are…

• ## What is variance in statistics/measure of dispersion/Formula

The variance or variance is a measure of the dispersion of a random variable (values ​​that are obtained randomly). It is widely…

• ## Class mark in statistics/Calculation/grouped data

The class mark is also known as the midpoint . It is the value that is in the center of a class and represents all…

• ## Cumulative frequency definition/Benefits/probability distribution

The accumulated frequency is the result obtained from the successive sum of the absolute or relative frequencies, when it is carried out…

• ## What are dependent variables in research/Classification

A dependent variable is called the emblematic representation of a certain event that is not specified, which belongs to a functioning…

• ## Types of Chi square tests/hypothesis test/operation

The Chi Square is the most knowledgeable test and one of the most used to perform the analysis of qualitative variables . Its name comes…

• ## What is a null hypothesis example/Formulation/Significance Tests

The null hypothesis is an assumption that is used to affirm or deny a certain event that is related to one or…

• ## Confidence interval in research/elements/depending factors

The confidence interval refers to the range of values ​​that is derived from the sample statistics, which likely includes the value…