# Statistics Theory

## How to find skewness of data

Skewness is a measure of the symmetry of a dataset. It describes the extent to which the values in the dataset are clustered around the …

## 6 common data visualization methods for analysis

Data visualization in statistics is the process of using graphical representations of data to understand and communicate trends, patterns, and relationships in the data. Data …

## Importance of statistics in the field of psychology

Statistics plays a critical role in psychology, a discipline that is concerned with understanding and explaining the behavior, thoughts, and feelings of individuals and groups. …

## What is data? what are levels of measurements of data?

Data in statistics is a collection of values or observations that are gathered and analyzed to understand patterns, trends, and relationships within a particular set …

## What is Data wrangling

Data wrangling, also known as data munging, is the process of cleaning, transforming, and preparing data for analysis. It is an essential step in the …

## How to do Hypothesis testing in statistics

Hypothesis testing is a statistical procedure used to evaluate the validity of a hypothesis. It is a tool that allows researchers to make decisions about …

## How to find quartiles of data in statistics

Quartiles in statistics are used to divide a data set into four equal parts, or quarters. The first quartile, also known as Q1, is the …

## How to find percentile of data

Percentiles in statistics are used to divide a data set into 100 equal parts, or percentiles. The nth percentile is the value in a data …

## How to calculate standard deviation of data

Standard deviation is a measure of the dispersion of a set of data. It is calculated by taking the square root of the variance of …

## What is variance? How to calculate variance of a data set?

Variance is a measure of how spread out a set of data is. It is a statistical concept that is used to describe the dispersion …

## How to calculate median of data

In statistics, the median is a measure of central tendency that represents the midpoint of a dataset. It is a value that separates the lower …

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