Three scatterplots are shown, along with their best-fit lines and correlation coefficients, r1, r2, and r3. choose the correct statement.

a) r1 < r2 < r3

b) r2 < r1 < r3

c) r3 < r2 < r1

d) r1 < r3 < r2

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).

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Hich equation can pair with x + 2y = 5 to create an inconsistent system? 2x + 4y = 3 5x + 2y = 3 6x + 12y = 30 3x + 4y = 8