About Chance Carnival
Chance Carnival turns probability into five carnival stalls. First, put everyday events on the scale from impossible to certain. Then give the chance of a spinner, a bag of marbles or a die as a fraction: the favourable results divided by all the results, with the simplest form shown once you get it right.
In Predict and try you guess how many reds 20 spins of a quarter-red spinner will give, then spin it for real and watch the results. Do it again with 200 spins and see the share settle closer to the chance. Two questions tackle a common mistake: a spinner or a coin has no memory, so five reds in a row do not make blue more likely.
Fair or unfair? asks you to recolour a spinner, choose winning numbers on a die and add marbles to a bag until both sides have the same chance, and to spot why a two-coin game is rigged. Two dice shows the 36 equally likely results and why 7 is the most common total. Every stall wins tickets for the prize wall.
Best for ages 9+
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