Learn how to calculate the standard deviation of a discrete random variable, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge and skills.

Sep 21, 2024 · That post constructs a discrete random variable whose support is an interval of rational numbers $ [0,1]\cap\mathbb Q,$ which is dense within the interval $ [0,1]$ of real numbers. In fact, …

Mar 3, 2018 · Continuous random variables: A continuous random variable is one where the probability measure has the above form with $\alpha = 1$. This necessitates an uncountable image, and it also …

Learn how to calculate the variance of a discrete random variable, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge and skills.

Mar 28, 2019 · A numerical variable is a quantitative variable. Numerical variables can further be classified as either discrete or continuous. A discrete variable is defined as a variable that can only …

Learn how to calculate the mean or expected value of a discrete random variable, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge and ...

Oct 15, 2020 · Therefore, heights of humans is actually a discrete random variable and not a continuous random variable? Everywhere I look it says that human heights is a continuous random variable with …

Jun 18, 2023 · Minor comment: A basic definition of “discrete random variable” is a random variable that can take only a finite or countably infinite number of possible values. So a random variable X that …

Learn about discrete and continuous probability distribution of a random variable. Discover how to make a probability distribution graph for both types of variables.

Jun 13, 2018 · Therefore, a discrete random variable does not have to have a 'finite number of options', but there needs to be a non-infinitesimal gap between the possible values.