Question: The following function is probability mass function. f(x)=553x+5,x=0,1,2,3,4 Determine the mean, , and variance, 2, of the random variable. Round your answers to two decimal

The following function is probability mass function. f(x)=553x+5,x=0,1,2,3,4 Determine the mean, , and variance, 2, of the random variable. Round your answers to two decimal places (e.g. 98.76). =2=

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