Select all that apply

Question

Select all that apply

Which of the following represents the variance?

Multiple select question.

σ

μ

σ2

Var(X)

E(X)

SD(X)

Answer 1

σ2

Var(X)
SD(X)

Answer 2

The following options represent the variance:

- σ2 (sigma squared): This symbol represents the variance of a random variable.
- Var(X): This is another notation used to represent the variance of a random variable. "X" represents the random variable itself.
- SD(X): This does not represent the variance. SD(X) represents the standard deviation of a random variable, which is the square root of the variance.