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- What is the variance formula written in the math book? Don't write such a complicated letter.
What is the variance formula written in the math book? Don't write such a complicated letter.
Variance = the average value of the square of the difference between each sample value and the average value of all sample values.
s^2= 1/n[(x 1-m)^2+(x2-m)^2+.+(xn-m)^2]
The smaller the variance, the more stable it is.
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