The standard deviation of a data set is a measurement of how close, in aggregate, its values are to the mean. The baseline from which this distance...

Learn how to calculate the standard deviation of a continuous uniform distribution, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge and ...

Learn how to calculate the standard deviation of the sampling distribution of a sample proportion, and see examples that walk through sample problems step-by-step for you to improve your ...

Learn what the standard deviation of a stock's returns is and how to find it using the standard deviation of returns formula. Understand standard deviation risk.

Learn how to calculate the standard deviation of the difference of two independent random variables, and see examples that walk through sample problems step-by-step for you to improve your ...

Learn how to calculate population standard deviation, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

Learn how to calculate the standard deviation of a discrete random variable, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge and skills.

Learn the definition and formula for standard deviation. See examples of standard deviation and explore what standard deviation is used for and why...

Learn how to calculate the standard deviation of a Poisson Distribution, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge and skills.

I want to find the standard deviation of the percentages, but weighted for their data volume. ie, the first and last data points should dominate the calculation.