This report, prepared by a group of students from the Department of Finance at the University of Dhaka, analyzes the application of statistical techniques within the banking sector of Bangladesh. The study, based on the annual reports of 30 DSE-listed banks, employs various statistical methods including frequency distributions, bar charts, histograms, pie charts, measures of location (mean, median, mode), measures of dispersion (range, variance, standard deviation), correlation, regression analysis, and index numbers. The report details the methodologies used, data limitations, and the practical application of these techniques to real-world financial data. It provides a comprehensive overview of how statistical tools can be used to understand and interpret financial data, demonstrating the importance of statistical knowledge in the field of finance. The report also includes graphical representations to aid in the understanding of the data and analysis, and concludes with a summary of the findings and their implications for the banking sector.