The median is the middle number in a sorted ascending or descending list. It can be more descriptive of the dataset than the average. It’s quite different from the mean.

Imagine a horizontal line. The very left is marked one thousand and the very right is marked one billion. On this line, where would you add a marker to represent one million? If you said somewhere in the middle, you answered the same as the roughly 50 ...

How many numbers have found their way into your brain today? 10? 100? 1,000? What if you include the number of steps and heartbeats from your smartwatch? Likes and followers on social media? Numbers at work, from your bank, in games, apps, and in your inbox?

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