This report delves into the realm of data insights, providing a comprehensive overview of both quantitative and qualitative research methodologies within the context of marketing. It elucidates the roles and applications of these research approaches, emphasizing their significance in modern market analysis. The report then explores the use of correlation and regression analysis, detailing their functions in quantifying relationships between variables and forecasting trends. Furthermore, it defines time series analysis, illustrating its application with examples. The report also addresses issues surrounding the use of these analytical techniques and provides insights into effective data collection strategies. Ultimately, the report aims to equip readers with a solid understanding of data insights and their practical implications in the field of marketing, supported by relevant references for further exploration.