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Activity 90 - Four-sided spinner
Make the four sided KNEX spinner opposite.
The spinner is used by spinning it, and then waiting until it stops on one edge.
Q1. Predict how often the spinner will show a 2 if you spin it 20 times. Now actually spin it 20 times. If your prediction is wrong, can you explain why?
Q2. Make a second four-sided spinner. How many different ways can you achieve a total of 5 with two spinners? What is the probability of you getting 5 if you spin both spinners at once?