![]() Discrete variable: a variable that can only take on a certain number of values. As you change the independent variable, you watch what happens to the dependent variable. … Dependent variable: the outcome of an experiment. Categorical variable: variables than can be put into categories. What is variable and its Types?Ĭommon Types of Variables. At a ratio level, you would record exact numbers for income. Groups with no rank or order between them.įor example, income is a variable that can be recorded on an ordinal or a ratio scale: At an ordinal level, you could create 5 income groupings and code the incomes that fall within them from 1–5. There are three types of categorical variables: binary, nominal, and Thus a variable can be considered as a quantity which assumes a variety of values in a particular problem. ![]() ![]() Variables are called variables because they vary, i.e. What does each variable mean?Ī variable represents a concept or an item whose magnitude can be represented by a number, i.e. For example, we might say that l stands for the length of a rectangle and w stands for the width of the rectangle. It is usually represented by letters such as x, y, or t. A variable is a symbol that we assign to an unknown value. What are the two types of qualitative variables?.What are the 2 types of quantitative data?.
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