data articles

What limits predictive statistics?

Predictive statistics, whether we call it analytics or modeling, feels like a glimpse into the future, offering tempting...

What causes statistical outliers?

Data points that sit far away from the main cluster of observations are often flagged as statistical outliers, but simpl...

How does variance measure spread?

Variance provides a precise mathematical answer to a fundamental question in data analysis: How *spread out* are the dat...

What limits data transmission speed?

The frustrating pause before a large file finishes downloading, or the sudden dip in video quality during peak hours, br...