Suppose that the number of drivers who travel between a particular origin and destination during a designated time period has a Poisson distribution with parameter μ-20 (suggested in the article "Dynamic Ride Sharing: Theory and Practice" t. (Round your answer to three decimal places.) (a) What is the probability that the number of drivers will be at most 11? (b) What is the probability that the number of drivers will exceed 23? (c) What is the probability that the number of drivers will be between 11 and 23, inclusive? What is the probability that the number of drivers will be strictly between 11 and 23? (d) What is the probability that the number of drivers will be within 2 standard deviations of the mean value?

a) P(k≤11) = 0.021

b) P(k>23) = 0.213

c) P(11≤k≤23) = 0.777

P(11<k<23) = 0.699

d) P(15<k<25)=0.687

Step-by-step explanation:

a) What is the probability that the number of drivers will be at most 11?

We have to calculate P(k≤11)

b) What is the probability that the number of drivers will exceed 23?

We can write this as:

c) What is the probability that the number of drivers will be between 11 and 23, inclusive? What is the probability that the number of drivers will be strictly between 11 and 23?

Between 11 and 23 inclusive:

Between 11 and 23 exclusive:

d) What is the probability that the number of drivers will be within 2 standard deviations of the mean value?

The standard deviation is

Then, we have to calculate the probability of between 15 and 25 drivers approximately.

e) none of the above because the measure of angle cba is 101°

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