Variables and Data

• Statistical data or information can be gathered through different ways such as interviewing people.
• A variable is a characteristic that takes two or more values which varies across individuals.
• The characteristic that is being studied is called variable.
• Qualitative variables - represent differences in quality, character, or kind but not in amount.
• Quantitative variables - numerical in nature and can be ordered or ranked.
• Discrete variables - is a variable whose value can be counted using integral values.
• Continuous variables - is a variable whose values can assume any numerical value over an interval.