Which one should i get?

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).

If g(x) is an odd function, which function must be an even function?

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0