Basic Statistical Concepts

📄️ Random Variable

A random variable is a variable whose values depend on outcomes of a random process. It is a mathematical function that assigns a numerical value to each outcome in a sample space of a random experiment.

📄️ Probability Distributions

A probability distribution describes how the values of a random variable are distributed. It gives the probability that a random variable will take on each of its possible values.

📄️ Mean, Variance, and Expected Values

These are fundamental concepts in statistics that describe the central tendency and variability of a probability distribution.

📄️ Sampling and Sampling Distributions

Sampling involves selecting a subset of data from a population to estimate characteristics of the whole population.