A Click Submit to complete this assessment. Question 5 The number of arrivals per hour at an automatic teller machine is Poisson distributed with a mean of 3.5 arrivals/hour, What Is the probability that more than three arrivals occur in an hour? .3209 O .4633 .5367 O .6791 O O O

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Q: 65.2 64.0 4 65.2 67.7 66.5 8 67.7 70.2 69.0 8 70.2 72.7 71.5 4

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A: Mean:The mean for the probability distribution is calculated using the following formula:

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A: a) Here λ=5            x = 0  P(x=x) = e-λλxx!P(x=0) = e-5λ00!             = 0.0067

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