normal distribution
Gaussian distribution

The fourth central moment of a normal distribution is 3σ.

In Figure 7.7 half of the normal distribution is drawn.

With normal distribution South would have taken 13 tricks, but he had a problem in making 12 when the heart five was led.

Insurance companies use normal distributions to model certain average cases.

The normal distribution is shown as a blue line for comparison.

However, in general, each component does not necessarily have a normal distribution.

In standardized testing, results can be made to have a normal distribution.

Each of the two populations being compared should follow a normal distribution.

I expect the graph would show approximately a normal distribution.

Alternatively, the difference can be compared to a normal distribution.