Дисперсия ряда 1,3,2,3,3

To calculate the variance of a data set, you can follow these steps:

1. Calculate the mean (average) of the data set.

   • For the given data set of 1, 3, 2, 3, 3, the mean is (1 + 3 + 2 + 3 + 3) / 5 = 2.4.

2. Subtract the mean from each data value to get the deviation.

   • Deviations: (-1.4, 0.6, -0.4, 0.6, 0.6)

3. Square each deviation.

   • Squared deviations: (1.96, 0.36, 0.16, 0.36, 0.36)

4. Calculate the mean of the squared deviations, which is the variance.

   • Variance: (1.96 + 0.36 + 0.16 + 0.36 + 0.36) / 5 = 0.64

Therefore, the variance of the given data set is 0.64.