calculate * 3. 100points 10.00 points The arrival time of an elevator in a 12-st

Question

calculate *

3. 100points 10.00 points The arrival time of an elevator in a 12-story dormitory is equally likely at any time range during the next 4 minutes a. Calculate the expected arrival time. (Round your answer to 2 decimal places.) Expected arrival time b. what is the probability that an elevator arrives in less than 112 minutes? (Do not round intermediate calculations. Round your answer to 3 decimal places.) Probability c, what is the probability that the wait for an elevator is more than 1 ½ minutes? (Do not round intermediate calculations. Round your answer to 3 decimal places.) Probability

Explanation / Answer

a. (0+4)/2 = 2.00 min
b. Pr = 1.5/4 = 0.375
c. Pr = 2.5/4 = 0.625

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