Answer: variables
Step-by-step explanation:
A variable is either a qualitative or quantitative entity for example a number, age, sex, income, days, class grades, color, texture, shape and other. A variable can be changed or manipulated in an experiment to know its impact on the desired variable or the experimental variable.
A variable may vary among the members of the population for example height, weight, age, sex, intelligent quotient and other features. Such variation s can be useful in determination of the most prominent or least occurring traits in the survey research.