For the ARMA(2,1) process yt=2/5y(t-1)-4/5y(t-2)-et+4/5(t-1) where en WN(0,sigma). What is the absolute value of the second root of the AR characteristic equation.​

The function models the number of accidents per 50 million miles driven as a function

5. (04.07)which of the following exponential functions goes through the points (1, 12) and (2, 36)? (2 points)f(x) = 3(4)^xf(x) = 4(3)^-xf(x) = 3(4)^-xf(x) = 4(3)^x

The equation represents the function f, and the graph represents the function g. f(x)=3(5/2)^x determine the relationship between the growth factors of f and g. a. the growth factor of g is twice the growth factor of f. b. the growth factor of f is twice the growth factor of g. c. the growth factor of f is 2.5 times the growth factor of g. d. the growth factor of f is the same as the growth factor of g.