Statistics is used to analyze and interpret collected data using measures like the mean, median, and mode. The mean is the average and is used by teachers to analyze student marks and by businesses to examine employee salaries and benefits. The median is the middle value and is used to analyze income distribution and player heights. The mode is the most frequent value and is used to study public transportation usage and the number of patients visiting hospitals. These statistical concepts have various applications in everyday life and business to understand data distributions and make comparisons.