The standard deviation formula may look confusing, but it will make sense after we break it down. In the coming sections, we'll walk through a step-by-step interactive example.

Introduction The questions below are designed to help you think deeply about standard deviation and its formula. Unlike most questions on Khan Academy, some of these questions aren't …

The formula we use for standard deviation depends on whether the data is being considered a population of its own, or the data is a sample representing a larger population.

The range is easy to calculate—it's the difference between the largest and smallest data points in a set. Standard deviation is the square root of the variance. Standard deviation is a measure …

What is the average age of the bears at your zoo? What is the standard deviation? Round your answers to the nearest tenth.

Aprende a calcular la desviación estándar paso a paso con ejemplos interactivos y explicaciones detalladas en este artículo de Khan Academy.

While using absolute values and dividing by the number of data points is a valid approach (as in MAD), Standard Deviation is preferred for its mathematical properties and interpretation.

See how distributions that are more spread out have a greater standard deviation.

The formula we use for standard deviation depends on whether the data is being considered a population of its own, or the data is a sample representing a larger population.

We could take the square root of both sides of this and say, the standard deviation of the sampling distribution of the sample mean is often called the standard deviation of the mean, …