From 509e57d38107e193185c1afebc60d21a30c02cdf Mon Sep 17 00:00:00 2001 From: Oluwafunmito Blessed Date: Mon, 24 Jun 2019 23:04:59 +0100 Subject: [PATCH] update index.md with article (#26915) * update index.md with article added article for dependent and independent variables. * fix: remove stub info --- .../dependent-and-independent-variables/index.md | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/guide/english/mathematics/dependent-and-independent-variables/index.md b/guide/english/mathematics/dependent-and-independent-variables/index.md index 76431a077a..4da2631cb8 100644 --- a/guide/english/mathematics/dependent-and-independent-variables/index.md +++ b/guide/english/mathematics/dependent-and-independent-variables/index.md @@ -3,13 +3,21 @@ title: Dependent and Independent Variables --- ## Dependent and Independent Variables -This is a stub. Help our community expand it. +Before talking about dependent and independent variables, it would be necessary to define what a *variable* is. -This quick style guide will help ensure your pull request gets accepted. +In simple terms, a variable is any thing that is liable to change. In order words, it is not consistent and does not have a fixed pattern. - +In science and mathematics, variables are often used to represent real world quantities that are unknown or can change. For example, if I earn $10 for every hour of work I do, how much I have at the end of the week will be determined by how many hours of work I did during that week. How many hours of work I do and how much I earn are both variables but one of them depends on the other. + +An *independent variable* is one that is changed or controlled in a scientific experiment. It represents the cause or reason for an outcome. The *dependent variable* variable on the other hand is the variable that is being tested or measured in the experiment. + +In the above example, my *independent variable* is the `number of hours` of work I do. I have total control over it and directly changing it cahnges the *dependent variable*, which is `how much I would have earned` at the end of the week. #### More Information: - +* [Khan Academy](https://www.khanacademy.org/math/pre-algebra/pre-algebra-equations-expressions/pre-algebra-dependent-independent/a/dependent-and-independent-variables-review) + +* [Sciencing](https://sciencing.com/meaning-variables-research-6164255.html) + +* [Thoughtco](https://www.thoughtco.com/independent-and-dependent-variables-differences-606115)