Sampling pines To gather data on a 1200-acre pine forest in Louisiana, the U. S. Forest Service laid a grid of 1410 equally spaced circular plots
over a map of the forest. The Forest Service wants to visit a sample of
10% of these plots. 12
(a) Explain why it would be difficult to select an SRS of 10% of the plots using
slips of paper.
(b) Describe how to select an SRS of 10% of the plots using a random number
generator

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: