The one on the left is 6 (1/2x3x4) and the one on the right is 72 (6x12)
Answer:

Step-by-step explanation:
If we approximate the binomial distribution with a normal distribution, we have to apply a correction factor for the fact that we are now dealing with a continuous variable instead of a discrete one, as it was with the binomial distribution.
The probability of no more than 35 defective CDs: P(X<35)
In this case, as X=35 is not included in the interval, we start the interval from X=35-0.5=34.5.

being Pb the probability under the binomial distribution and Pn the probability under the normal distribution.
The area for the normal distribution is the one below X=34 (or P(X<34)).
Plug the values (x,y)=(0,0) into the inequalities:

0 isn't greater than 0, no (0,0) is not a solution to either of these inequalities.
The answer is D.
All of these points have the same y coordinate so this is a horizontal line which has a slope of 0.