Question

Hi. How do you calculate this Poisson Distribution in the TI-83? Thanks.

A bus arrives approximately every half hour. Daniel arrives at a bus stop
not knowing what the schedule is. What is the probability that a bus
arrives in the next 20 minutes?

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A bus arrives approximately every half hour. Daniel arrives at a bus stop not knowing what the schedule is. What is the probability that a bus arrives in the next 20 minutes?

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