Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Mathematics

Mean in Normal Distribution

Quick fact

In a normal distribution, the mean, median, and mode are all exactly the same value, making it the only common distribution with this perfect symmetry.

Why this is interesting

You know the classic bell curve? What makes it perfectly balanced, and where does the 'center' of the hump actually sit?