Data Visualization and Machine Learning Essentials

Here’s a script for a 5+ minute video lecture explaining Week 2 material of BUSINFO

703, with focus on the key lecture content: Hello everyone,

and welcome to Week 2 of BUSINFO 703. In this session, we build on

last week’s introductory foundation by diving deeper into essential tools and concepts for modern data

analysis: data sources, data transformation, hands-on Power BI basics,

and—crucially—how to critique visualisations for business insight and integrity. Let’s start with data sources.

In business analytics, understanding where your data comes from is core. Think beyond simple

spreadsheets. In practical projects, data might arrive via Excel, CSV or DSV