Standard Deviation ની ગણતરી કેવી રીતે કરવી

Standard Deviation શું છે?

Standard deviation measures how spread out the values in a dataset are from the mean. A low standard deviation means values cluster tightly; a high one means they are spread out. It is the square root of variance.

પગલું દ્વારા પગલું માર્ગદર્શિકા

1. 1Find the mean x̄
2. 2Subtract the mean from each value and square the result: (xᵢ − x̄)²
3. 3Average the squared differences (÷n for population, ÷(n−1) for sample)
4. 4Take the square root

Worked Examples