Mean, median and mode answer different questions.
And “the number in the middle” needs one more piece of information.
Read →Why does 2 + 2 × 3 equal 8?
Order of operations lets a short expression have a shared interpretation.
Read →A 20% drop and a 20% rise do not cancel.
The missing question is always: a percentage of what?
Read →Count the outcomes before you trust the odds.
Coins, counters and one small change that makes yesterday’s fraction wrong.
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