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What is a correlation?

A correlation is a mathematical relationship between two variables that reflects the changes between the variables. A correlation can be positive or negative. A positive correlation means that when one variable increases, the other variable also increases and vice versa. A negative correlation means that when one variable increases, the other variable decreases and vice versa.

What is regression analysis?

Regression analysis is a mathematical technique used to predict future outcomes and determine the relationships between different variables. It can be used to predict the effect of a particular influencing factor on another variable or to determine which variables contribute most strongly to a particular metric. Applications of regression analysis include predicting sales volumes, determining prices, and determining credit risk.

What is the Bayes theorem?

Bayes theorem is a mathematical theorem that allows to calculate the probability of an event based on known information. It is commonly used in statistics, machine learning, and artificial intelligence. It allows predicted probabilities to be updated based on new information. It also helps determine the cause of an event. It was named after the English mathematician Thomas Bayes, who developed it in the 18th century.

What is a probability distribution?

A probability distribution is a mathematical function that describes the probability that a certain event will occur. There are several types of probability distributions, including normal, binomial, Poisson, and exponential.

What is probability theory?

Probability is a branch of mathematics that deals with the analysis of random variables, probabilities and probability distributions. It is used to solve problems associated with probabilities and likelihoods that arise in many areas of science and everyday life. It is an important part of statistics, where probabilities are used to describe events and predict future events.