Poisson Distribution
Finding an observed value
You can be asked to find an observed value as in the following question.
A shop sells a particular T.V at a mean rate of 5 per day. Assuming that the number sold per day follows a Poisson distribution. Find the smallest number of T.V.'s that must be in stock at the beginning of the day in order to have at least a 99% chance of being able to meet all demands that day.
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