$84 increased by 12% use the percent of change to find the mew amount

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Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Write an equation for the function that includes the points (2,100)and (3,100)

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