variable is a value or characteristic that can take different values. Thus option D is correct.
what are types of variable in research method ?
A variable is a property, any number which can take on different values in different situations.
Types of Variable include Qualitative Variables, Quantitative Variables, Discrete Variable, Continuous Variable, Dependent Variables, Extraneous Variable, Moderating Variable etc.
Qualitative variables are the in expressible format which include hair color, religion, race, gender, social status etc.
Quantitative variables, is a numeric variables such as which can be measured in terms of number like Person's age, height, sugar level etc.
Quantitative variables are up two types such as discrete and continuous.
A box containing number of defective items are under discrete variables while other variable like time needed to complete the task called as continuous variable.
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