A bank gets an average of 85 customers per hour

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Question 18 of 201.0/ 1.0 PointsA bank gets an average of 8.5 customers per hour. Assume the variable follows a Poisson distribution. Find the probability that there will be 4 or more customers at this bank in one hour. (That is, find P(X≥4) (round to 4 decimal places) Answer: 0.9699
Part 6 of 6 - Probability2.0/ 2.0 PointsQuestion 19 of 201.0/ 1.0 PointsIf A and B are any two events with P(A) = .8 and P(B|A) = .4, then the joint probability of A and B is:
Question 20 of 201.0/ 1.0 PointsIf a menu has a choice of 5 appetizers, 4 main courses, and 2 desserts, then the sample space for all possible dinners has how many outcomes?

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