Statistics, Probability Distributions, Machine Learning.
the data spread. Var (X) = E(x-µ)² = ∑(x-µ)².p(x) Let us take the above example of game again. Here, E(X) or µ is 0.5. Hence, Var(X) = (-1- 0.5)² x 1/6 + (2 - 0.5)² x 1/6 + (-3- 0.5)² x 1/6 + (4 - 0.5)² x 1/6 + (-5- 0.5)² x 1/6 + (6 - 0.5)² x 1/6 = 14.92 Similarly, we can also calculate standard