1. What is the difference between domain/range for the function? OR what is the difference between domain/range for the problem situation? Give an example. Your writing must be a minimum of 3000 characters on 500 words.

I need this by march 30th ​

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).

Need on this one asap im almost done with this subject

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.