A set of probability value pi assigned to each of the values taken by the discrete random variables xi.
and
Probability
Expectation
Probabilistic properties of a continuous random variable.
Expectation
If there is a point that,
Then,
Is the expectation of this random variable, equal to the point of symmetry.
The middle value of the random variable.
For median, set p to 0.5.
A positive quantity that measures the spread of the distribution of the random variable about its mean value.
Larger values of the variance indicate that the distribution is more spread out.