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# Category: Mathematics

## Spearman’s Rank Correlation Coefficient

The above video (almost 20 minute long) provides a simple tutorial explaining how to calculate Spearman’s Rank coefficient of correlation. Part of the video

## Karl Pearson’s Coefficient of Correlation

The above video (almost 9 minute long) provides a simple tutorial explaining how to calculate Karl Pearson’s coefficient of correlation. I teach in an

## Time Series

What is a time series and what are the various components of time series? Time series is a series of values of a quantity obtained

## Correlation and Regression

Define Correlation. Describe the use of a scatter diagram for ascertaining the correlation between two variables. Correlation between two variables is the extent of the

## Index Numbers: All formulae in one place

Want to check if you have remembered them? Try this memory game: https://fragilevoyager.com/try-you-hand-at-some-index-number-formulae/