# Normal probability distribution

1. Draw a normal probability distribution (bell curve) on a piece of paper and mark the center line (mean). (no need to send me the sketch-just tell me your answer.

a. Draw another line to the right of the center and call it x. If you want to know what the value of the area "greater than" x is, would you be looking to the area to the left or to the right of the x? ______

b. On the same bell curve, draw a line to the left of the center line and call it y. If you want to find the area "greater than" y, are you looking at the area to the left or the right of your y line? ______

c. Related to the y line you just drew, when you look up the z score to find the corresponding area for "greater than" y, (remember, this line is to the left of center), what do you need to do with that area number to arrive at your final "greater than" y answer? ___________

d. Now shade in the area between the center line and the x line that you previously drew previously, and mark that area 36%. If we know that the total area under the distribution curve equals 1, and that probability associated with area is between 0 and 1, how would we translate that 36% to communicate the probability associated with the area?

#### Solution Preview

1. Draw a normal probability distribution (bell curve) on a piece of paper and mark the center line (mean). (no need to send me the sketch-just tell me your answer.

a. Draw another line to the right of the center and call it x. If you want to know what the value of the area "greater than" x is, would you be looking to the area to the left or to the right of the x? ______

To the right of the x.

b. On ...

#### Solution Summary

Answers questions related to normal probability distribution.