In a survey of 100 people, 40 were casual drinkers (eventD), and 60 did not drink (eventD '). Of the ones who drank, 6 had minor headaches. Of the non-drinkers, 9 had minor headaches. LetDrepresent set of surveyed people who were casual drinkers andD'represent those who did not drink.LetHrepresent set of surveyed people who reported having had minor headaches, andH' represent the set of those who did not have minor headaches. 1) FindP(D)(the probability that a single randomly-selected survey respondent was a casual drinker) 2) FindP(H)(the probability that a single randomly-selected survey respondent reported having minor headaches) 3) FindP (D H)(the probability that a single randomly-selected survey respondent was a casual drinker AND reported having minor headaches) 4) Are the events "drinkers" (D) and "had headaches" (H) independent?

A.EventsDandHare mutually exclusive

B.EventsDandHare independent

C.EventsDandHare not independent

D.EventsDandHare both mutually exclusive and independent