Exposure - Lead Based High Blood Normal Total Paint in The Home Lead Levels Blood Lead Levels YES 19 162 NO 98 2093 Total a. Calculate the cumulative incidence of disease frequency for each of the 2 groups. (4 Points) b. Calculate the relative risk comparing the lead exposed group to the non-exposed group. (2 Points) c. Interpret the relative risk you calculated in letter b in language that the public will understand. (2 Points) d. Calculate the risk difference comparing the lead exposed group to the non- lead exposed group. (2 Points)