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the random variable X, representing the number of accidents in a certain intersection in a week, has the following probability distribution: x: P(X=x), 0=0.20, 1=0.30,
the random variable X, representing the number of accidents in a certain intersection in a week, has the following probability distribution:
x: P(X=x), 0=0.20, 1=0.30, 2=0.20, 3=0.15, 4=0.10, 5=0.05
On average, how many accidents are there in the intersection in a week?
5.3
2.5
1.8
0.30
0.1667
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