Suppose that earthquakes occur in the western portion of the United States in accor- dance with assumptions 1, 2, and 3, with à = 2 and with 1 week as the unit of time. (That is, earthquakes occur in accordance with the three assumptions at a rate of 2 per week.) (a) Find the probability that at least 3 earthquakes occur during the next 2 weeks. (b) Find the probability distribution of the time, starting from now, until the next earthquake.
Suppose that earthquakes occur in the western portion of the United States in accor- dance with assumptions 1, 2, and 3, with à = 2 and with 1 week as the unit of time. (That is, earthquakes occur in accordance with the three assumptions at a rate of 2 per week.) (a) Find the probability that at least 3 earthquakes occur during the next 2 weeks. (b) Find the probability distribution of the time, starting from now, until the next earthquake.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Suppose that earthquakes occur in the western portion of the United States in accor-
dance with assumptions 1, 2, and 3, with à = 2 and with 1 week as the unit of time.
(That is, earthquakes occur in accordance with the three assumptions at a rate of 2
per week.)
(a) Find the probability that at least 3 earthquakes occur during the next 2 weeks.
(b) Find the probability distribution of the time, starting from now, until the next
earthquake.
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