40% of all registered voters are Republicans, 45% of all registered voters are Democrats and 15% of all registered voters are Independents. Among the Republican voters, 60% are men. Among the Democratic voters, 30% are men. Finally among the Independent voters, 20% are men.
a. A person is selected at random from the population. What is the probability this person is a man?
b. A person is selected at random from the population and is found to be a woman. What is the probability this person is an Independent?
40% of all registered voters are Republicans, 45% of all registered voters are Democrats and 15%...
In a given county, records show that of the registered voters, 45% are Democrats, 40% are Republicans, and 15% 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? The probability...
In a given county, records show that of the registered voters, 45% are Democrats, 35% are Republicans, and 20% are Independents. In an election, 80% of the Democrats, 40 % of the Republicans, and 80% 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?
In County A 50% of the registered voters are Democrats, 30% are Republicans, and 20% are Independents. During a recent election, 35% of the Democrats voted, 65% of the Republicans voted, and 75% of the Independents voted. a) What is the probability that a randomly selected registered voter from County A voted in the recent election? b) If a randomly selected registered voter from County A voted in the recent election, what is the probability that the voter is a...
4. A population of voters contains 45% Republicans, 46% democrats and the rest are independents. Assume 40% of republicans, 60% of democrats and 50% of independents favor an election issue. A person chosen at random from this population is found to favor the issue in question. Find the conditional probability this person is a democrat.
A recent election 72% of registered democrats, 41% of registered republicans, and 59% of registered independents voted yes on a ballot measure. Of the Voters in the election, 48% were democrats, 41% were republican, and 11% independent. Create a tree diagram to find the proportion of voters that voted yes.
In a recent senatorial election, 59% of the voters in a certain district were registered as Democrats, 38% were registered as Republicans, and 3% were registered as Independents. The incumbent Democratic senator was reelected over her Republican and Independent opponents. Exit polls indicated that she gained 82% of the Democratic vote, 27% of the Republican vote, and 33% of the Independent vote. Assuming that the exit poll is accurate, what is the probability that a vote for the incumbent was...
The table below represents the number of republicans, democrats and independent voting on a specific issue. A person from the group is randomly selected. What is the probability of i. The person being a democrat. ii. The person being against the issue. iii. The person being against the issue OR being a republican. iv. The person being not concerned and an independent. Republicans Democrats Independents FOR 55 40 25 AGAINST 25 30 20 NOT Concerned 20 10 5
on campus 60% of the studemts are registered Democrats while 40% are registered Republicans. a) exactly three of a sample of seven students are Democrats b) at leaser one if the seven students is not a Democrat. c) what is the expected number of republicans in a samole of 100 from the population of students described above?
In one state, 52% of the voters are Republicans, and 48% are Democrats. In a second state, 47% of the voters are Republicans, and 53% are Democrats. Suppose a simple random sample of 100 voters are surveyed from each state. What is the probability that the survey will show a greater percentage of Republican voters in the second state than in the first state? (A) 0.04 (B) 0.05 (C) 0.24 (D) 0.71 (E) 0.76
Step by Step Bayes Theorem In an imagined survey of voters, you found 55 % of the voters were Democrats and the rest were Republicans. You also found 90 % of the Democrats voted President Obama but only 14 % of the Republicans did. 55%, or, P(D) 0.55. First some easy questions. You clearly know that the probability voter is a Democrat What is the probability a voter is a Republican, P(D')? What is the probability of somebody voting for...