Quantitative data refers to information that can be measured and expressed numerically. This type of data is often collected through surveys, experiments, or observations, allowing researchers to analyze patterns and trends. Examples include measurements like height, weight, temperature, and test scores. This data is typically used in fields such as statistics, economics, and social sciences to draw conclusions and make predictions. By using statistical methods, researchers can interpret quantitative data to understand relationships between variables and assess the significance of their findings.