Population & Sample Variance
A practical example of why we divide by (n-1) when calculating the sample variance
Detecting and Fixing Outliers in Data
Using a Selective Median Filter to clean erroneous data
Remittance and the exchange rate
Remittance is surprisingly not dependent on the prevailing exchange rate
Base Rate Fallacy
Interpreting commonly quoted statistical results through understanding of base and false discovery rates.
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
Demystifying the Data Scientist
Is the time ripe for a full stack data scientist?
Introduction to R
Learn the basics of using R to perform simple data analysis
Monte Carlo simulation in Scala
Calculating the value of Pi using Monte Carlo simulation
Curve smoothing in R
Common techniques for smoothing curves and how to do that in R