d) Find the probability that at least two particles arrive in a particular 4 second period.

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A: is a continuous random variable following a uniform distribution, that is .

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Q: How many elements does it contain?  I forgot to add that part.

A: From the above part we haven(C) = n(B) ={ (1,4),(4,1),(2,3),(3,2) }n(CB) = { (2,3),(3,2) }

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A: The provided information is as follows:There are three red marbles.There are three green…

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A: Given that there are 5 couples at the party.

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A: It is given that Sophomores = 18Juniors = 12Seniors = 10

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A: Mean() = 42.20Standard deviation() = 0.035

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A: Given:

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A: F(x,y) : { (x+y)/42 ; x=1,2,3 y=1,2  ; 0 elsewhere } Mean : E(X) = sum(x*P(x))

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A: It is required to calculate the mean of the random variable X, using the moment generating function.

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A: According to the Bartleby guidelines experts solve only one question and maximum three subparts of…

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A: X1 ∼ N(0.7,1.4), X2 ∼ N(−0.5,1.2), X3 ∼ N(0.9,1.7), and X4 ∼ N(−0.2,2.1), independently.

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A: Total population = 242 millionTotal male population = 115 millionTotal female population = 127…

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Q: What is the expectation of X?

A: An urn holds 4 red, 3 blue, and 2 green marbles.Three marbles are selected, altogether, without…

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A: Given that x denotes the movement of sand dunes and x follows normal distribution with =16 feet per…

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A: According to the given information ,P(factory 1) = P(f1) =  0.10P(factory 2) = P(f2) = 0.30P(factory…