To calculate standard deviation, find the mean, calculate each value’s deviation, square them, average the squared deviations, and take the square root.
To calculate standard deviation, find the mean, calculate each value’s deviation, square them, average the squared deviations, and take the square root.
Standard deviation measures how much data values vary from their average. To calculate it, find the mean, subtract it from each value, square the differences, calculate their average, and take the square root. For samples, divide by one less than the number of values.
Find the mean, subtract it from each value, square the differences, calculate their average, and take the square root. For samples, divide by n−1; for populations, divide by n.
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