3. Suppose it is known from large amounts of historical data that X, the number of cars that arrive at a specific intersection during a 20-second time period, is characterized by the following discrete probability function: f(x) = e-6 , for x = 0,1,2, ... 6x x! a) Find the probability that in a specific 20-second time period, more than 8 cars arrive at the

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3. Suppose it is known from large amounts of historical data that X, the number of cars that arrive at a
specific intersection during a 20-second time period, is characterized by the following discrete probability
function:
6x
f(x) = e-6, for x = 0,1,2, ...
a) Find the probability that in a specific 20-second time period, more than 8 cars arrive at the
intersection.
Transcribed Image Text:3. Suppose it is known from large amounts of historical data that X, the number of cars that arrive at a specific intersection during a 20-second time period, is characterized by the following discrete probability function: 6x f(x) = e-6, for x = 0,1,2, ... a) Find the probability that in a specific 20-second time period, more than 8 cars arrive at the intersection.
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