Suppose a country has 1,000,000 registered voters, 370,000 of whom are Democrats and 430,000 of whom are Republicans. If a registered voter is chosen at random, what is the probability that he or she is neither a Democrat nor a Republican?
A)Pr(neither Democrat nor Republican) = 0.8000
B)Pr(neither Democrat nor Republican) = 0.2000
C)Pr(neither Democrat nor Republican) = 0.9400
D)Pr(neither Democrat nor Republican) = 0.6300
E)Pr(neither Democrat nor Republican) = 0.4300

Question

Suppose a country has 1,000,000 registered voters, 370,000 of whom are Democrats and 430,000 of whom are Republicans. If a registered voter is chosen at random, what is the probability that he or she is neither a Democrat nor a Republican? ​
A)Pr(neither Democrat nor Republican) = 0.8000
B)Pr(neither Democrat nor Republican) = 0.2000
C)Pr(neither Democrat nor Republican) = 0.9400
D)Pr(neither Democrat nor Republican) = 0.6300
E)Pr(neither Democrat nor Republican) = 0.4300

Quizplus · Accepted Answer

The total number of Democrats and Republicans is 370,000 + 430,000 = 800,000. Therefore, the number of voters who are neither Democrats nor Republicans is 1,000,000 - 800,000 = 200,000. The probability is 200,000 / 1,000,000 = 0.2000.

Suppose a Country Has 1,000,000 Registered Voters, 370,000 of Whom