Political analysts estimate the probability that Candidate A will run for president in the next
Election is 45%, and the probability that Candidate B will run is 20%. If their political decisions are
Independent, then what is the probability that only Candidate A runs for president?
A) 11%
B) 45%
C) 9%
D) 36%
E) 25%

Question

Quizplus · Accepted Answer

The probability that only Candidate A runs is the probability that A runs and B does not run. This is calculated as 0.45 * (1 - 0.20) = 0.45 * 0.80 = 0.36 or 36%.

Political Analysts Estimate the Probability That Candidate a Will Run