There are 4 truck in the fleet of 10 cars. 2 cars were randomly selected. Make a series of distribution of a discrete random var
iable X - the number of trucks among the selected.
1 answer:
Answer:
X = 0 , P(0) = 1/3
X = 1 , P(1) = 8/15
X = 2 , P(2) = 2/15
Step-by-step explanation:
Let X be the no. of trucks
X = 0 , P(0) = 6/10 × 5/9 = 1/3
X = 1 , P(1) = 2(6/10 × 4/9) = 8/15
X = 2 , P(2) = 4/10 × 3/9 = 2/15
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