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The average number of electronic messages received in a day on a smartphone is 15.Following a Poisson Distribution, calculate the probability that, in any day,

The average number of electronic messages received in a day on a smartphone is 15.Following a Poisson Distribution, calculate the probability that, in any day, more than 20 messages will be received.

91.7%

15.6%

84.3%

8.3%

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