Thời gian CS

What is it about?

Standard deviation is the arithmetic square root of the arithmetic mean (ie: variance) of the deviation from the mean square, expressed in sigma. Standard deviation, also known as standard deviation, or experimental standard deviation, is most often used in probability statistics as a measure of the degree of statistical distribution. In probability statistics, it is most often used as a measure of the degree of statistical dispersion. Standard deviation is defined as the square root of the arithmetic mean of the standard value of each unit of the population and its mean deviation square. It reflects the degree of dispersion between individuals in the group. The result of measuring the degree of distribution. The app supports input numbers, and then calculates the standard deviation, variance and other data of the data. It can reflect the degree of statistical distribution of the data and is also a good helper for learning probability theory!