Population & Sample Variance

A practical example of why we divide by (n-1) when calculating the sample variance

Remittance and the exchange rate

Remittance is surprisingly not dependent on the prevailing exchange rate

Fertility & Infant Mortality

An analysis to determine the relationship between fertility and infant mortality rates

Are Movies Getting Better or Worse?

A fun little data analysis exercise using IMDB movie rating database

Introduction to R

Learn the basics of using R to perform simple data analysis

Curve smoothing in R

Common techniques for smoothing curves and how to do that in R