Mathematics, 25.02.2020 17:26 maleah12x

Determine the mean and variance of the random variable with the following probability mass function. f left-parenthesis x right-parenthesis equals left-parenthesis 8divided by 9right-parenthesis left-parenthesis 1 divided by 9right-parenthesis Superscript x Baseline comma x equals Number 0 , 1 , 2 , . . . Hint: Use the formula for the sum of the infinite series where .

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