Which datatype will you select for the following variables : Name
Answers
In statistical research, a variable is defined as an attribute of an object of study. Choosing which variables to measure is central to good experimental design.
Example
If you want to test whether some plant species are more salt-tolerant than others, some key variables you might measure include the amount of salt you add to the water, the species of plants being studied, and variables related to plant health like growth and wilting.
You need to know which types of variables you are working with in order to choose appropriate statistical tests and interpret the results of your study.
You can usually identify the type of variable by asking two questions:
What type of data does the variable contain?
What part of the experiment does the variable represent?
Table of contents
Types of data: Quantitative vs categorical variables
Data is a specific measurement of a variable – it is the value you record in your data sheet. Data is generally divided into two categories:
Quantitative data represents amounts.
Categorical data represents groupings.
A variable that contains quantitative data is a quantitative variable; a variable that contains categorical data is a categorical variable..
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