Given the following probability distribution of a discrete random variable X, x 0 -2 -1 1 2 3 4 5 6 p(x) 0.0391 0.1455 0.1083 0.1482 0.0605 0.1484 0.0998 0.1435 0.1066 Choose one from the following which is closest to the correct answer. O c. The mean μ = 2. 1035 and the standard deviation σ = 2.4105. O b. The mean μ = 2.0988 and the standard deviation = 2.3498. O e. The mean μ = 2.247 and the standard deviation o = 2.4496.

Q: A business has six customer service telephone lines. Consider the random variable x = number of…

A: It is given that the variable X denotes the number of lines in use at a randomly selected time.

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A: V(X)=E(X2)−μ2

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A: Solution

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A:

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A: It is an important part of statistics. It is widely used.

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A: Solution: From the given information, the probability mass function of X is

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A:

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A: The following information has been provided: μ=5.0                n=10x¯=5.38              σ=1.9

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Q: marginal distributions of X and Y.

A:

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A: X012345p0.290.16?0.200.140.05

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A:

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A: