Continuous Random Variables A continuous random variable is a random variable where the data can take infinitely many values. mathematics probability

Discounted Cumulative Gain Discounted cumulative gain (DCG) is a measure of ranking quality. In information retrieval, it is often used to measure effectiveness of web search engine. concept machine-learning mathematics

Discrete Random Variables A random variable is a variable whose value is a numerical outcome of a random phenomenon. A discrete random variable X has a countable number of possible values. mathematics probability

Conditional Probability and Bayes' Rule Bayes' theorem calculates the probability of an event based on the prior knowledge of the conditions that might affect the event. mathematics probability

Basic Probability Concepts Probability is a number between 0 and 1, where, 0 indicates impossibility and 1 indicates certainty. mathematics probability