What is the Chi-Square Test? Understanding its Applications and Limitations

What is Chi-Square Test Statistics? The Chi-Square test is used to determine if there is any significant relationship between two or more categorical variables. Chi-square statistics, also known as the chi-square test, is a statistical method used to test the association between two categorical variables. It is a non-parametric test, which means it does not make any assumptions about the underlying distribution of the

The Importance of Data Cleaning in Data Analysis

Data cleaning is an essential step for obtaining accurate and actionable insights. It is the process of identifying and correcting inaccuracies, inconsistencies, and irrelevant data in your dataset. Without proper data cleaning, the results of data analysis can be unreliable and misleading as Garbage-in-Garbage-Out. For example, imagine you are analysing sales data for a retail store. If the data contains duplicate entries or missing