In statistics, a normal distribution is also known by what other term?

In statistics, a normal distribution is also known by what other term?

• A. Gaussian distribution
• B. Dependent distribution
• C. Independent variable
• D. Gaussian variable

Answer: (A)

The normal distribution is also called the Gaussian distribution. This name comes from Carl Friedrich Gauss, who helped develop the theory around this bell-shaped curve. Both terms describe the same distribution—symmetric around its mean and fully described by the mean and standard deviation. It’s a fundamental model because many real-world phenomena approximate it due to the central limit theorem, where many small, independent factors combine to create a roughly normal shape. Why the other terms aren’t used for the distribution: Dependent distribution isn’t a standard way to name a distribution, and “dependent” describes a relationship between variables, not a type of distribution. The independent variable is a factor you manipulate in an experiment, not a name for a distribution. “Gaussian variable” isn’t the conventional term for the distribution itself; you might hear about a Gaussian (or normal) random variable, which refers to a variable that follows a Gaussian distribution, but the distribution’s widely accepted names are normal or Gaussian.

The normal distribution is also called the Gaussian distribution. This name comes from Carl Friedrich Gauss, who helped develop the theory around this bell-shaped curve. Both terms describe the same distribution—symmetric around its mean and fully described by the mean and standard deviation. It’s a fundamental model because many real-world phenomena approximate it due to the central limit theorem, where many small, independent factors combine to create a roughly normal shape.

Why the other terms aren’t used for the distribution: Dependent distribution isn’t a standard way to name a distribution, and “dependent” describes a relationship between variables, not a type of distribution. The independent variable is a factor you manipulate in an experiment, not a name for a distribution. “Gaussian variable” isn’t the conventional term for the distribution itself; you might hear about a Gaussian (or normal) random variable, which refers to a variable that follows a Gaussian distribution, but the distribution’s widely accepted names are normal or Gaussian.