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1. A normal distribution curve is 2. The mean, median, and mode are equal and are located at the of the distribution. 3. The curve is about the mean, which is equivalent to saying that its shape is the same on both 34.13% 34.13% sides of a vertical line passing 0.13% 2.15% 13.59% 13.59% 2.15% through the center. 4. The total area under a normal # - 30 M+ 20 distribution curve is equal to About 68% About 95% or About 99.7% 5. The area under the part of a normal FIGURE 6-4 Areas Under a Normal Distribution Curve curve that lies within 1 standard deviation of the mean is approximately 68%; within 2 standard deviations, abou 95%; and within 3 standard deviations, 99.7%. This is known as the