Normal distribution ( Gaussian distribution)

• Probability distribution that is symmetric about the mean.
• Data that are near the mean occurs more frequently than data that are far from mean.
• Appears as a bell curve
• In Normal distribution, mean is zero and Standard deviation is 1.
• Skewness is 0 and kurtosis is 3.
• Are symmetrical in nature.
• Symmetric distribution isn’t always normal distribution because it mayn’t form two mirror images.
• It is a continuous probability distribution which is bell shaped, unimodal and symmetrical.
• The normal distribution of a variable when represented graphically, takes the shape of a symmetrical curve known as Normal curve
• This curve is asymptotic to x-axis (baseline) on either side.