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Showing posts with label Replication. Show all posts
Showing posts with label Replication. Show all posts

Sunday, July 15, 2012

Five hidden facets of numbers


We live in a world flooded with numbers. News stories, nutrition labels, results from research studies, and even sports highlights are riddled with numbers! Numbers are comforting; they seem solid and dependable.

“The numbers don’t lie.” But what if they do? Numbers can be manipulated to tell contradictory stories. Here are five things to think about next time you see a reported number.

1. Error Margin
2. Sample Size
3. Sample Bias
4. Replication
5. Rounding Errors