Experimental Probability

Experimental probability, also called relative frequency, is the number of times an outcome happens divided by the number of trials. In NSW Year 8 maths (NESA outcome MA4‑PRO‑C‑01) it is compared with the theoretical probability expected when conditions are fair.

You will work with hundreds of trials, pool results from several groups, predict counts for a larger group such as Saturday shoppers or learner drivers, and estimate the colours in a bag or on a spinner you cannot see. You will also decide when a result is evidence that a die or spinner is biased, and choose a fair simulation, such as random digits for a netball shooter who scores 70% of her shots. It is part of Year 8 Probability.