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Relative frequency:More trials

Work out the relative frequency after more and more trials and mark each on a zoomed number line. Give the best estimate, then decide whether a coin or spinner is fair.

A free GCSE Foundation and Higher probability lesson on relative frequency: more trials, spec code P5. It has a lesson deck to teach from with a visualiser, a worksheet with answers, a puzzle, an exit ticket, end of unit tests and a method video.

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