Ratio data is a type of quantitative data that has a true zero point, allowing for meaningful comparisons between values. This means that not only can you measure the differences between values, but you can also express how many times one value is greater than another. Examples of ratio data include measurements like height, weight, and temperature in Kelvin. In ratio data, operations such as addition, subtraction, multiplication, and division are all applicable. This makes it possible to calculate ratios and percentages, providing a comprehensive understanding of the data. Common fields that utilize ratio data include statistics, economics, and scientific research.