# Population Standard Deviation

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__What is Population Standard Deviation?__

__What is Population Standard Deviation?__

Population standard deviation is the square root of the population variance. It provides a measure of the average distance between each data point and the mean. In other words, it tells us how much the data points deviate from the mean on average.

To calculate population standard deviation, simply take the square root of the population variance. The population standard deviation is denoted by the symbol σ (sigma).

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__Why are Population Variance and Population Standard Deviation Important?__

__Why are Population Variance and Population Standard Deviation Important?__

Population variance and population standard deviation are crucial in statistical analysis for several reasons:

They provide insights into the spread of data points in a population, allowing us to understand the variability and distribution of the data.

They help in comparing different datasets and determining which dataset has a higher or lower dispersion.

They are used in various statistical tests and calculations, such as hypothesis testing and confidence intervals.

They are fundamental in probability theory and the calculation of probabilities.

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