Problema Solution
A survey of a precinct's residents revealed that 55% of the residents were memebers of the Democratic party and 60% of the Democratic party members voted in the last election. What is the probability that a person selected at random from this precinct is a member of the Democratic party and voted in the last election?
Answer provided by our tutors
A voting precinct's survey recently revealed that 55% residents are Democrats,but 60% of the Democrats voted in the last election.What the probability that a random person from this precinct is Democratic and voted in the last elction?
Solution:
P = 55%*60% = 0.55*0.60 = 0.33
So the probability that a random person from this precinct is Democratic and voted in the last elction is 0.33