Lesson 3

• Normal distribution is distribution of a continuous random variable whose graph is a bell shaped curve called normal curve.
• Normal distribution has a mean of 0 and a standard deviation of 1.
• A normal distribution is bell-shaped.
• The curve is symmetric about the y-axis.
• The mean, meadian, and mode coincide at the center of the distribution.
• The distribution is unimodal.
• Its curve is asymptotic.
• The total area under the curve is 1.