2.Some variables that describe a used BMW include model year, price, model style and mileage. Which variables are categorical or numerical or nominal or ordinal? Give reasons for your answers.

you need a common difference between consecutive terms to be constant, like 1,2,3,4 or 2,4,6,8, or 1,3,6,9

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.