Confuse to learn Math for Machine Learning. This eBooks gives a very good guidelines about math you need to learn.
If you want collect data for apply Machine Learning on Business. This e-book will help you in understanding these areas. Data Science Process Data Visualization in Business Understand How to answer Know ML Key Terminology Understand ML Implementation ML Applications on Marketing and Retail
These all are the topics that are covered in this eBook Notation Linear Algebra Vector Spaces Linear Maps Metric Spaces Normed Spaces Inner Product Spaces Orthogonal Metrices Symmetric Metrices Positive definite Metrices Sigular Value Decomposition Fundamental Thorem of Linear Algebra Operator and Matrix norms Calculus and Optimization Probablity Conditional Probablity Chain Rule Bayes Rule Random Vectors The Gaussian distribution