Normal Distribution

Normal Distribution

1. Bell Shaped Curve

   • Unimodal
   • Continuous
   • Area under curve = 1
   • Symmetrical about mean
   • Never touches X-axis
   • Affected by
     • Mean
     • Standard Deviation

2. Mean = Median = Mode

3. 50% of values

   • More than mean
   • Less than mean

4. Also known as

   • Probability Distribution
   • Gaussian Distribution
   • Law of Chance

5. Examples

   • Height
   • Marks
   • Blood Pressure