First find . Recall that a normal curve is bell-shaped with the highest point over the mean, . There is a curve and 4 vertical lines with equal space between them that start on the normal curve and end on the horizontal axis are on the graph. The curve enters the window from the left, just above the horizontal axis, goes up and to the right, changes direction over approximately 23 on the horizontal axis, and then goes down and to the right before exiting the window just above the horizontal axis. The first vertical line labeled 23 extends down from the highest point on the normal curve to the horizontal axis. The second vertical line labeled 26 is to the right of the first vertical line. The third vertical line labeled 29 is to the right of the second vertical line. The fourth vertical line labeled 32 is to the right of the third vertical line. Observing the given normal curve we see that the highest point is located when x = . Therefore, =