In a linear regression model, the dependent variable is "Final exam score (\%) for WPC 300 " and the independent variable is "Hours studied". A coefficient of 4 could be interpreted as for every one \% increase in the final exam score, the expected hours of study is 4. four hours of additional study, the expected increase in the final exam score is 1%. four hours of additional study, the final exam score is expected to increase by 4%. hour of additional study, the expected final exam score increases by 4%