Normal Distribution

​1. The z-distribution is a normal distribution with a mean of 0 and standard deviation of 1.

2. The normal curve is bell-shaped.

3. The tails of the normal curve approach the vertical axis but never touch it.

4. The mean is always greater than either the median or the mode.

5. The curve is symmetrical about its center.

6. The total area under the normal curve is always less than 1.

7. The total area under the normal curve is always less than 1.

8. The width of the normal curve depends on the standard deviation of the distribution.

9. Almost 99.7% of the distribution falls within three standard deviations

from the mean.

10. The left tail of the normal curve is flatter than its right tail.