Ben Orlin of Math With Bad Drawings explains the pitfalls of using summary statistics — mean, median, and mode — to make decisions in life. Aggregates like these are meant as wideout overviews. Look deeper for details.
Sketchy summary statistics
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Years You Have Left to Live, Probably
The individual data points of life are much less predictable than the average. Here’s a simulation that shows you how much time is left on the clock.
Chances it’s a Friend’s Birthday Every Single Day of the Year
If it seems like every day you log in to Facebook, it’s someone’s birthday, you’re probably not that far off.