# What Is The Meaning Of Variable In Mathematics?

## What is variable define with example?

In mathematics, a variable is a symbol or letter, such as “x” or “y,” that represents a value. For example, a variable of the string data type may contain a value of ” sample text” while a variable of the integer data type may contain a value of “11”.

## What is called variable?

A variable is a symbolic name for (or reference to) information. They are called variables because the represented information can change but the operations on the variable remain the same.

Answer: A variable is a datatype whose value can not be fixed. For example, Let X is a variable so that its value can be anything like 1,2,3 or a,p,r, or any word. It can not be fixed.

## What are 3 types of variables?

There are three main variables: independent variable, dependent variable and controlled variables.

## What are the main types of variables?

There are six common variable types:

• DEPENDENT VARIABLES.
• INDEPENDENT VARIABLES.
• INTERVENING VARIABLES.
• MODERATOR VARIABLES.
• CONTROL VARIABLES.
• EXTRANEOUS VARIABLES.

## What is variable and function?

Remember that variables are items which can assume different values. A function tries to explain one variable in terms of another. Consider the above example where the amount you choose to spend depends on your salary. Here there are two variables: your salary and the amount you spend.

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## Who invented variables?

At the end of the 16th century, François Viète introduced the idea of representing known and unknown numbers by letters, nowadays called variables, and the idea of computing with them as if they were numbers—in order to obtain the result by a simple replacement.

## How do we classify variables?

Classifying variables can be somewhat contentious. Standard statistical textbooks will state that variables can be broadly classified as categorical or continuous. Categorical variables can be further categorised into nominal (e.g. ethnic group), ordinal (e.g. tumour staging) and dichotomous (e.g. sex).

## What are the two types of variables in math?

There are two types of quantitative variables: discrete and continuous.

## What type of variable is age?

In statistics, there are broadly 2 types of variables: Numerical variables: Numbers which should be treated as they usually are in mathematics. For example, age and weight would be considered numerical variables, while phone number and ZIP code would not be considered numerical variables.

## What is variable and its types?

Variables represents the measurable traits that can change over the course of a scientific experiment. In all there are six basic variable types: dependent, independent, intervening, moderator, controlled and extraneous variables.

## What are 3 control variables?

An experiment usually has three kinds of variables: independent, dependent, and controlled.