A Director of Human Resources is exploring employee absenteeism at the INCOVA Hospital. A multiple linear regression analysis was performed using the following variables. The results are presente Variable Description number of days absent last fiscal year x1 commuting distance (in miles) X2 employee's age (in years) x3 length of employment at PPP (in years) Coefficients Standard Error t Statistic p-value Intercept 6.594146 3.273005 2.014707 0.047671 x1 -0.18019 0.141949 -1.26939 0.208391 X2 0.268156 0.260643 1.028828 0.307005 x3 -2.31068 0.962056 -2.40182 0.018896 R=0.498191 R2=0.248194 Adj R2=0.192089 se = 3.553858 n = 73 Which of the following statements is correct about the R2? O a. The adjusted R2 value is 0.25. This means that the model explains around 25% of the variation in the average number of days absent in the last year. O b. The adjusted R2 value is approximately 0.19. This means that the model explains around 19% of the variation in the average number of days absent in the last year. O c. The adjusted R2 value is 0.50. This means that the model explains around 50% of the variation in the average number of days absent in the last year. O d. None of the above is correct