Probability and Statistics > Non normal Distributions > Gamma Distribution The gamma distribution is a family of right-skewed probability distributions. These distributions are useful in real-life where something has a natural minimum of 0. For example, it is commonly used…

# Uniform Distribution / Rectangular Distribution: What is it?

Probability and Statistics > Basic Graphs and Charts > Uniform Distribution Contents: What is a Uniform Distribution? Expected Value/Mean and Variance. 1. What is a Uniform Distribution? A uniform distribution, also called a rectangular distribution, is a probability distribution that…

# Symmetric Distribution in Statistics

Probability and Statistics >Descriptive Statistics > Symmetric Distribution A symmetric distribution is a type of distribution where the left side of the distribution mirrors the right side. By definition, a symmetric distribution is never a skewed distribution. This should…

# Unimodal Distribution in Statistics

Probability and Statistics > Descriptive Statistics > Unimodal Distribution Watch the video or read the article below: Unimodal Distribution : Overview A unimodal distribution is a distribution with one clear peak or most frequent value. The values increase at first,…

# Slovin’s Formula: What is it and When do I use it?

Probability and Statistics > Slovin’s Formula If you take a population sample, you must use a formula to figure out what sample size you need to take. Sometimes you know something about a population, which can help you determine a…