Statistics for Data Science 1 - W4_L5: Association between two numerical variables - describing association

Welcome to Week 4 Lecture 5 of the course "Statistics for Data Science - I" by Prof. Andrew Thangaraj. Full Course: https://study.iitm.ac.in/ds/course_pages/BSMA1002.html Video Overview This lecture explains how to describe the association between two numerical variables using scatter plots. You’ll learn how to interpret the direction of the relationship (positive or negative), recognize patterns (linear or curved), and evaluate the strength of association based on how tightly data points cluster. The lecture also highlights the importance of detecting outliers and understanding how they influence overall trends. By the end, you’ll know how to describe relationships in data visually and statistically — a key skill for effective data analysis and interpretation. About IIT Madras' online Bachelor of Science programme IIT Madras offers four-year BS programmes that aim to provide quality education to all, irrespective of age, educational background, or location. The BS programme has multiple levels, which provide flexibility to students to exit at any of these levels. Depending on the courses completed and credits earned, the learner can receive a Foundation Certificate from IITM CODE (Centre for Outreach and Digital Education), Diploma(s) from IIT Madras, or BSc/BS Degrees from IIT Madras. For more details, Visit: https://www.iitm.ac.in/academics/study-at-iitm/non-campus-bs-programmes #ScatterPlot #DataAnalysis #VariableAssociation #DataVisualization #Statistics #LinearRelationship #CurvedRelationship #Outliers #Trends #Patterns #DataInterpretation #DataScience #VisualAnalysis #Regression #Correlation #StatisticalLearning #QuantitativeMethods #BivariateAnalysis #DataInsights