Ashipment of 12 microwave ovens contains 3 defective units. a vending company has ordered 4 of these units, and because all are packaged identically, the selection will be at random. what is the probability that at least 2 units are good?

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

i dont understand the question? ?

step-by-step explanation: