The weekly demand for propane gas (in 1000s of gallons) from a particular facility is an rv x with pdf f(x) 5 u 2a1 2 0 1 2 x b b. compute e(x), v(x), and s x . c. for n, a positive integer, compute e(x n ). 1#x#2 otherwise

Use a calculator to verify that σ(x) = 62, σ(x2) = 1034, σ(y) = 644, σ(y2) = 93,438, and σ(x y) = 9,622. compute r. (enter a number. round your answer to three decimal places.) as x increases from 3 to 22 months, does the value of r imply that y should tend to increase or decrease? explain your answer. given our value of r, y should tend to increase as x increases. given our value of r, we can not draw any conclusions for the behavior of y as x increases. given our value of r, y should tend to remain constant as x increases. given our value of r, y should tend to decrease as x increases.