We аre still using оne vаriаble that measures the willingness tо pay mоre in taxes to reduce the life expectancy gap between lower and higher-income people (PayTaxes). We are interested in knowing whether certain variables (listed below) have a linear relationship with PayTaxes. In particular, we are interested in attempting to predict individuals' scores on PayTaxes by using one or more of the variables below. The three variables we think help us predict PayTaxes are: Being willing to donate your money to a charity that helps reduce health disparities (Charity) Being willing to volunteering with a local organization that helps reduce health disparities (Volunteer) Being willing to vote for political candidates who plan to address health disparities (Vote) All four variables listed above are measured on a 5-point Likert-style scale ranging from 1 (Very Willing) to 5 (Very Unwilling). Please indicate the predictor variable(s) in this problem.