I have no idea how to solve this problem, need help badly!!
In a given county, records show that of the registered voters, 45% are Democrats, 30% are Republicans, and 25% are Independents, In an election, 70% of the Democrats, 30% of the Republicans, and 90% of the Independents voted in favor of a parks and recreation bond proposal. If registered voter chosen at random is found to have voted in favor of the bond, what is the probability that the voter is a Republican, An Independent? A democrat?
Hello, pauly215!
I have no idea how to solve this problem.
Why do you insist on saying that?
Really, NO idea?
Your title suggests that you MIGHT use Bayes' Theorem.
In a given county, records show that of the registered voters, 45% are Democrats,
30% are Republicans, and 25% are Independents.
In an election, 70% of the Democrats, 30% of the Republicans, and 90% of the
Independents voted in favor of a parks and recreation bond proposal.
If a registered voter chosen at random is found to have voted in favor of the bond,
what is the probability that the voter is a Republican? .An Independent? .A Democrat?
We have this data: .
We have:
. .
Hence: .
Therefore, we have:
. .