Let = 0.2−1 + be an autoregressive process of order 1, where is a white noise

with mean zero and variance 2.

a) Use Backward Shift operator to express it in terms of

b) Show that the process is stationary

c) Find the ACF

d) Obtain the correlogram

i dont know it

step-by-step explanation:

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation:

first, let's see what the pattern is.

58 - x = 47

46 - x = 36

x = 9

so this means that the term after 25 is 25 - 9:

the next term in the sequence is 16.