This document discusses how data science can help solve problems in marketing. It provides examples of common marketing problems such as customer segmentation, predictive modeling, personalization, optimization, and A/B testing. It then explains how data science techniques like analyzing customer data can help companies develop more effective marketing strategies by providing insights into customer behavior and preferences. Specifically, data science allows companies to identify customer segments, predict future behaviors, deliver personalized messages, maximize marketing efforts, and test strategies. Overall, the document argues that data science is a useful tool for marketing because it can help companies make more informed decisions by analyzing customer data.