Should a regression analysis be done?

Measles and Mumps The data show the number of cases of measles and mumps for a recent 5-year period. Measles Cases 49 130 61 54 220 Mumps Cases 817 454 2002 2562 388 Send data to Excel The correlation coefficient for the data is r=-0.678 and a- 0.05. Should regression analysis be done? The regression analysis should not be done. X O The regression analysis should be done. Find the equation of the regression line. Round the coefficients to at least three decimal places. y'=atbx p a