This document discusses correlation, regression, and cluster analysis as statistical methods for forecasting. Correlation quantifies the relationship between two variables from -1 to 1. Regression constructs an equation describing the relationship between variables to forecast scenarios. Cluster analysis groups objects with similar characteristics into clusters to categorize large amounts of data. The document recommends using cluster analysis to analyze consumer survey responses that have interdependent factors. It provides examples of how companies have used cluster analysis for market segmentation, product categorization, and anomaly detection.