Normal Distributions. The normal distribution is the most important and most widely used distribution in statistics. It is sometimes called the "bell curve," although the tonal qualities of such a bell would be less than pleasing. It is also called the "Gaussian curve" of Gaussian distribution after the mathematician Karl Friedrich Gauss.
Every normal distribution is a version of the standard normal distribution that's been stretched or squeezed and moved horizontally right or left. The mean determines where the curve is centered. Increasing the mean moves the curve right, while decreasing it moves the curve left. The standard deviation stretches or squeezes the curve.
The Normal Distribution is used to analyze data when there is an equal chance for the data to be above and below the average value of the continuous data. It is named after the famous mathematician and physicist Carl Friedrich Gauss. The 5 common properties of Normal Distribution are: Normal Distribution Curve is symmetric about the mean.
The Normal distribution is also known as Gaussian or Gauss distribution. Many groups follow this type of pattern. That's why it's widely used in business, statistics, and in government bodies like the FDA: Heights of people. Measurement errors. Blood pressure. Points on a test.
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what is normal distribution used for
