The average life of a lightbulb is 2500 h, with a standard deviation of 200 h. suppose that 10,000 bulbs are purchased to equip a new building. assume that the lives are normally distributed. how many of the light bulbs would be expected to burn out after just 1800 h?

a framing bias

step-by-step explanation:

rodrigo is subject to a framing bias i believe.

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: