Answer:the population is threaded rods produced at the factory that week the sample is the 40 threaded rods selected
Step-by-step explanation:
Assuming that this particular type of question is a system of equations one. More specifically linear equations, you would simply substitute one of the equations into the other one. Then upon doing so, plug in the x and y coordinates for the point into the x and y variables of the equation and then see if it is a solution, by checking if the left hand side of the equation equals that of the right hand side of the equation.
3/4 times 2/3 = 6/12 = 1/2
your answer is 1/2
i hope this helps!!