Data and probability
Probability
A probability says how likely something is, as a number between 0 and 1: the number of favourable outcomes divided by the number of possible outcomes.
What you need first
Why
You roll a die and need a six to win. How big is your chance?
In a board game you can feel that rolling a six does not happen all that often. But how often, then? And is rolling an even number easier?
Probability turns that feeling into a number. Then you can compare, invent fair games and predict roughly what happens when you roll very often.
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