According to a survey conducted by an environmental organization,the probability that an eligible voter cares about environmental issues is 0.61,the probability that an eligible voter voted in the last election is 0.44 and the probability that an eligible voter both voted in the last election and cares about environmental issues is 0.30.Are caring about environmental issues and voting in the last election disjoint events?
A)Yes,the probability that a voter cares about environmental issues is the same as the probability that a voter cares about environmental issues given that they voted in the last election.
B)No,30% both care about environmental issues and voted in the last election.
C)No,the probability that a voter voted in the last election is 0.44,but the probability that a voter voted in the last election given that they care about environmental issues is 0.49.
D)Yes,the probability that a voter cares about environmental issues and voted in the last election is zero.
E)Yes,because P(C or V)= P(C)+ P(V).

Question

Quizplus · Accepted Answer

Disjoint events cannot occur at the same time. Since 30% of voters both care about environmental issues and voted in the last election, the events are not disjoint.

According to a Survey Conducted by an Environmental Organization,the Probability