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Standard deviation is a commonly used formula in statistics expressing numerically how much the numbers in a group deviate from the mean value of the group. This site is all about standard deviation, so you can find here the formula, meaning, steps to calculate and other such information about standard deviation.

Standard deviation is an important concept and forms the basis of statistics and mathematics. It is taught to students in school and students might find it hard to calculate the standard deviation. So this is a solution for such problems as it provides all the information about standard deviation and easy step-wise solution of how to calculate the standard deviation.

So you will never make mistakes again in calculating the standard deviation and find it easy to solve questions pertaining to it. Since we all use computers for our studies as well, this site will also provide you with useful tips on how you can calculate standard deviation in an excel sheet, standard deviation calculators, etc.