Question

at a checkout counter customers arrive at an average of 1.5 per minute find the probabilities that in any given minute of time
1) at most 4 will arrive​

Answer 1

Answer:

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Answer 2

Answer:

mean=n.p

=(1.5).1

=1.5

lamda=1.5

according to Poisson therom

p(x=0)+p(x=1)+p(x=2)+p(x=3)+p(x=4)