What is the reason for people to do experiments?

People conduct experiments to test hypotheses, explore relationships between variables, and gather empirical evidence to support or refute theories. Experiments allow for systematic investigation and the ability to manipulate conditions, leading to more controlled and reliable results. This process enhances understanding of natural phenomena and can lead to advancements in various fields, including science, medicine, and technology. Ultimately, experiments contribute to knowledge expansion and informed decision-making.