A discrete random variable is a type of random variable that can take on a countable set of distinct values. Common examples include the number of children in a family, the outcome of rolling a die, ...

A discrete random variable is a type of random variable that can only take on a countable number of distinct values.

A random variable is one whose value is unknown or a function that assigns values to each of an experiment’s outcomes. A random variable can be discrete or continuous.

A discrete random variable maps the outcomes of a chance process to a countable set of numbers. Variables corresponding to outcomes that are are counted are discrete. Values might be fractional and ...

Key Takeaways Expected value describes the long-term average level of a random variable based on its probability distribution.

Discrete distributions: Examples include the binomial distribution, Poisson distribution, and geometric distribution, which are used for discrete random variables.

A random variable that can take only a certain specified set of individual possible values-for example, the positive integers 1, 2, 3, . . . For example, stock prices are discrete random variables ...

What is the probability that in a sample of 20 window frames: a\) none will need adjustment? b\) at most two will need adjustment? c\) at least two will need adjustment? d\) Estimate the mean and ...