I am the difference between what is expected and what is seen. I can measure uncertainty or validate truth. What am I?
Category: Math · Difficulty: hard
Hint: Consider how we assess the spread of data.
Answer
A variance
Explanation
Variance measures how far a set of numbers is spread out from their average value.
This is a hard math riddle — a tricky one that takes a little thought. The answer is A variance.
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