In probability and statistics, several terms are used to describe the various functions that are used to model probability distributions. These include:Probability density function (PDF):The PDF is a function that describes the probability of a continuous random variable taking on a certain value. It is a mathematical function that describes the probability that a random
The central limit theorem is a fundamental concept in statistics. It states that given a sufficiently large sample size from a population with a finite level of variance, the mean of all samples from the population will be approximately normally distributed. This means that if we take many samples from a population and compute the
PopulationA population is the entire group of individuals or objects that we are interested in studying. For example, the population could be all the people living in a certain city, all the students in a school, or all the cars on a certain road.SampleA sample is a subset of a population. It is a smaller
Permutations and combinations are two related concepts in mathematics that involve arranging elements or numbers. Permutations are arrangements where the order of the elements matters, while combinations are arrangements where the order does not matter.These concepts are used in various fields, such as probability and statistics, computer science, finance, and more. Understanding the basics of
Factorial value is a mathematical concept often used in various fields, including statistics, probability theory, and combinatorics. The factorial of a non-negative integer n, denoted by n!, is the product of all positive integers up to and including n. Factorials are denoted by an exclamation mark (!) after a number. For example, the factorial of 4
The rule of addition and the rule of multiplication are two important rules of probability that describe how probabilities are calculated for multiple events.Rule of AdditionThe rule of addition (also known as the “OR” rule) states that the probability of two or more mutually exclusive events occurring is the sum of the probabilities of the
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