Why Normal Curve Is Bell Shaped?

The normal distribution is a continuous probability distribution that is symmetrical on both sides of the mean, so the right side of the center is a mirror image of the left side. ... The normal distribution is often called the bell curve because the graph of its probability density looks like a bell.

Is normal curve bell-shaped?

A bell curve is a common type of distribution for a variable, also known as the normal distribution. The term "bell curve" originates from the fact that the graph used to depict a normal distribution consists of a symmetrical bell-shaped curve.

What are the characteristics of a normal or bell-shaped curve?

Characteristics of a Normal Curve

All normal curves are bell-shaped with points of inflection at μ ± σ . All normal curves are symmetric about the mean . Therefore, by the definition of symmetry, the normal curve is symmetric about the mean . The area under an entire normal curve is 1.