Discrete random variable

Discrete Random Variable
Discrete Random Variable definition :
A random variable that can take only a certain specified set of individual possible values-for example, the positive integers 1, 2, 3, . . .

Discrete random variable
A random variable that can take only a certain specified set of discrete possible
values - for example, the positive integers 1, 2, 3, . . .
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for a discrete random variable, the probability density function at a specific value is the probability that the random variable will have that value; for a continuous random variable, ...

A probability distribution of a discrete random variable. For example, if a discrete random variable X has a binomial distribution, then it mathematical function f(x) is a pmf.

Definition: The probability distribution of a discrete random variable is a list of probabilities associated with each of its possible values. It is also sometimes called the probability function or the probability mass function.

A six-sided fair dice can be modelled with a discrete random variable with outcomes 1 through 6, each with equal probability . The expected value is (1 + 2 + 3 + 4 + 5 + 6)/6 = 3.5. Therefore the variance can be computed to be:
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Compounding the time value of money for separate time intervals.
Discrete random variable ...

See also: Random variable, Values, Expense, Life insurance policy, Bills