The following function is probability mass function. f left-parenthesis x right-parenthesis equals StartFraction 2x plus 1Over 25EndFraction comma x equals 0 comma 1 comma 2 comma 3 comma 4 Determine the mean, μ, and variance, σ2, of the random variable. Round your answers to two decimal places (e. g. 98.76).

a) Mean  = 2.6

B) Variance = 9.2

Step-by-step explanation:

We are given the following probability mass function in the question:

a) Mean of random variable

b) Variance of the random variable

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well what you have to do is divide 84 by 6 so theanswer

step-by-step explanation:

84 divided by 6 = 14

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