## parameter

### In mathematics, a parameter is a variable that represents a constant value in a mathematical equation or function

In mathematics, a parameter is a variable that represents a constant value in a mathematical equation or function. It typically appears as a coefficient or a constant term that affects the behavior or outcome of the equation. Parameters can be used in various mathematical contexts, such as in the definition of a geometric shape, the equation of a curve, or a statistical model.

For example, in the equation of a line (y = mx + b), ‘m’ represents the slope of the line, which is a parameter that determines the steepness or inclination of the line. Similarly, ‘b’ represents the y-intercept, which is also a parameter that determines the position of the line on the y-axis.

In statistical analysis, parameters are often used to describe the characteristics of a population or a distribution. For instance, in a normal distribution, the mean (μ) and the standard deviation (σ) are parameters that define the shape, center, and spread of the distribution.

Parameters are distinct from variables in that they are fixed values or constants that remain unchanged throughout a specific mathematical problem or analysis. In contrast, variables can take on different values, and their values can vary depending on the context or specific problem being considered.

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