Level 3: Quantify chance as probability and relate it to the structure of a simple event.
3C
Quantify probability as the ratio of the number of target outcomes to all possible outcomes (or as the ratio of areas representing these outcomes).
"The chance of spinning a red is 1/3 since there is one red sector and 3 sectors altogether."
"If there's no chance at all, the probability is zero!"
Controlling the Spinner
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Spinner Red Half the Time
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Quantifying Chance as a Ratio of Areas
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Lessons
5 Investigating Chance