The first step in using regression analysis in forecasting sales is to: Selected answer will be automatically saved. For ifyboard navigation, press up/down arrow keys to select an answer. a run a trial regression with all the independent variables and then eliminate those that have low t-values. b run regression with each independent variable alone to see which one is most strongly related to the dependent variable. c run a correlation and identify which variables have a high correlation with sales and low correlations with each other. d run a correlation to decide which variables will be the dependent variable