Mark noticed that his bus is late to school 5% of the time. He wants to design a spinner he can use to simulate the situation and determine the probability that the bus will be late three times next week.How should Mark divide his spinner to best simulate the situation?

A late bus happens 5% of the time, and 5% is equal to 5/100, or 1/20. So Mark should divide the spinner into 20 equal-sized sections and designate one section as “late.” Each spin then has a 1-in-20 chance of representing a late bus.

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