A statistician is a professional who specializes in collecting, analyzing, and interpreting data. They use mathematical theories and techniques to help make sense of complex information, often working in fields like healthcare, business, and government. Their work involves designing surveys and experiments, ensuring data quality, and applying statistical methods to draw meaningful conclusions. Statisticians play a crucial role in decision-making processes by providing insights based on data analysis. They often use software tools to visualize data and communicate their findings effectively. Their expertise helps organizations understand trends, make predictions, and improve outcomes in various areas, including economics and social sciences.