what the random variable is ?

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what the random variable is ?

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https://en.wikipedia.org/wiki/Random_variable

https://en.wikipedia.org/wiki/Random_variable
Random variable – Wikipedia
A random variable is a measurable function from a sample space as a set of possible outcomes to a measurable space . The technical axiomatic definition requires the sample space to be a sample space of a probability triple (see the measure-theoretic definition ). A random variable is often denoted by capital Roman letters such as .

https://www.investopedia.com/terms/r/random-variable.asp

https://www.investopedia.com/terms/r/random-variable.asp
Random Variable: Definition, Types, How Its Used, and Example
21 févr. 2024Random Variable: A random variable is a variable whose value is unknown, or a function that assigns values to each of an experiment’s outcomes. Random variables are often designated by letters and …

https://statisticsbyjim.com / probability / random-variable

https://statisticsbyjim.com / probability / random-variable
Random Variable: Discrete & Continuous – Statistics By Jim
A random variable is a variable where chance determines its value. They can take on either discrete or continuous values, and understanding the properties of each type is essential in many statistical applications. Random variables are a key concept in statistics and probability theory. While randomness defines both discrete and continuous …

https://byjus.com/maths/random-variable

https://byjus.com/maths/random-variable
Random Variable | Definition, Types, Formula & Example – BYJU’S
What is Random Variable in Statistics? In probability, a real-valued function, defined over the sample space of a random experiment, is called a random variable. That is, the values of the random variable correspond to the outcomes of the random experiment. Random variables could be either discrete or continuous.

https://www.khanacademy.org/math/statistics-probability/random-variables-stats-library

https://www.khanacademy.org/math/statistics-probability/random-variables-stats-library
Random variables | Statistics and probability – Khan Academy
Level up on all the skills in this unit and collect up to 2100 Mastery points! Start Unit test. Random variables can be any outcomes from some chance process, like how many heads will occur in a series of 20 flips of a coin. We calculate probabilities of random variables and calculate expected value for different types of .

https://www.cuemath.com/data/random-variable

https://www.cuemath.com/data/random-variable
Random Variable – Definition, Meaning, Types, Examples – Cuemath
A discrete random variable is a variable that can take on a finite number of distinct values. For example, the number of children in a family can be represented using a discrete random variable. A probability distribution is used to determine what values a random variable can take and how often does it take on these values. Some of the discrete that are associated with certain …

https://www.mathsisfun.com/data/random-variables.html

https://www.mathsisfun.com/data/random-variables.html
Random Variables – Math is Fun
X is the Random Variable The sum of the scores on the two dice. x is a value that X can take. Continuous. Random Variables can be either Discrete or Continuous: Discrete Data can only take certain values (such as 1,2,3,4,5) Continuous Data can take any value within a range (such as a person’s height) All our examples have been Discrete.

https://www.statisticshowto.com/random-variable

https://www.statisticshowto.com/random-variable
Random Variable: What is it in Statistics? – Statistics How To
Mean and mode of a Random Variable. The mean of a discrete random variable is the weighted mean of the values. The formula is: μ x = x 1 *p 1 + x 2 *p 2 + hellip; + x 2 *p 2 = Σ x i p i. In other words, multiply each given value by the probability of getting that value, then add everything up. For continuous , there isn’t a …

https://www.khanacademy.org/math/ap-statistics/random-variables-ap

https://www.khanacademy.org/math/ap-statistics/random-variables-ap
Random variables and probability distributions | Khan Academy
A random variable is some outcome from a chance process, like how many heads will occur in a series of 20 flips, or how many seconds it took someone to read this sentence. Calculate probabilities and expected value of random variables, and look at ways to ransform and combine random variables.

https://www.statology.org/random-variables

https://www.statology.org/random-variables
What Are Random Variables? – Statology
A continuous random variable is a variable which can take on an infinite number of possible values. Some examples of continuous random variables include: Weight of an animal; Height of a person; Time required to run a marathon; For example, the height of a person could be 60.2 inches, 65.2344 inches, 70.431222 inches, etc. There are an infinite …
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