What statistical notation typically represents the sample proportion?

The sample proportion is typically represented by the notation p̅ (pronounced "p-bar"). This notation indicates the proportion of a sample that has a particular characteristic out of the total number of individuals in that sample.

In statistical analysis, p̅ is crucial for estimating the population proportion (p) based on observed data. It helps researchers make inferences about the larger population from which the sample is drawn. The formula for calculating the sample proportion is p̅ = x/n, where x is the number of individuals in the sample with the characteristic of interest, and n is the total sample size.

In contrast, p usually refers to the population proportion, while σ represents the standard deviation of a population, and μ denotes the population mean. Understanding these distinctions is important for correctly interpreting statistical data and applying the right notation in analyses and reports.