4. A population of voters contains 45% Republicans, 46% democrats and the rest are independents. Assume...
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.
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4. A population of voters contains 45% Republicans, 46%
democrats and the rest are independents. Assume...
In a given county, records show that of the registered voters, 45% are Democrats, 35% are...
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 a given county, records show that of the registered voters, 45% are Democrats, 40% are...
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 County A 50% of the registered voters are Democrats, 30% are Republicans, and 20% are...
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...
Step by Step Bayes Theorem In an imagined survey of voters, you found 55 % of the voters were Democrats and the rest we...
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...
A total of 46% of voters in a certain city classify themselves as Independents; 30% as...
A total of 46% of voters in a certain city classify themselves as Independents; 30% as Liberals and 24% as Conservatives. In a recent election, 35% of the Independents, 62% of the Liberals, and 58% of the conservatives voted. A voter is chosen at random. Given that this person voted, what is the probability that he or she is (a) an Independent? (b) a Liberal? (c) an Conservative? (d) What fraction of the voters participated in the election?
In a large city, 39% of the population are Republican, 38% are Democrats and 23% are...
In a large city, 39% of the population are Republican, 38% are Democrats and 23% are Other. Of the republicans, 22% are in favor of the new tax measure A, of the democrats, 55% are in favor of the new tax measure A and of the others, 73% are in favor of the new tax measure A. Use the tree diagram below to answer the following question. For Republican Against Democrat Against For Other Against What is the probability that...
The issue of corporate tax reform has been cause for much debate in the United States....
The issue of corporate tax reform has been cause for much debate in the United States. Among those in the legislature, 34% are Republicans, 60% are Democrats and 6% are Independents. It is reported that 35% of the Republicans, 34% of the Democrats and 31% of Independents favor some type of corporate tax reform. Suppose a member of Congress is randomly selected and he/she is found to favor some type of corporate tax reform. What is the probability that this...
2. President Donald Trump has promised to pass a bill to build a wall on the...
2. President Donald Trump has promised to pass a bill to build a wall on the U.S. border. Polls show that 90% of registered Democrats are against this bill, while 60% of registered Republicans and 50% of registered Independents favor the bill. The distribution of party affiliation is 35% Democrat, 30% Republican, and 35% Independent. a. What is the probability that someone picked at random does not favor the bill? b. Suppose a randomly selected person does favor the bill....
A population of 50 registered voters contain 30 in favor of Proposition 134 and 20 opposed....
A population of 50 registered voters contain 30 in favor of Proposition 134 and 20 opposed. An opinion survey selects a random sample of 4 voters from this population. (1) Calculate the probability that there will be no one in favor of Proposition 134 in the sample. (2) Calculate the probability that the sample contains exactly one pro 134 person. (3) Calculate the probability that there will be at least one person in favor of Proposition 134 in the sample.
1) A sample of size 25 is chosen from a population. Assume the probability distribution is...
1) A sample of size 25 is chosen from a population. Assume the probability distribution is normal. If the mean of the sample is 80 and the standard deviation is 6, find the lower bound of the 99% confidence interval. Round off to three decimal places. 2) A sample of size 36 is chosen from a population. The sample mean is 50 and the standard deviation is 5. Find the upper limit of the 95% confidence interval for the population...
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...
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...
In a large city, 39% of the population are Republican, 38% are Democrats and 23% are Other. Of the republicans, 22% are in favor of the new tax measure A, of the democrats, 55% are in favor of the new tax measure A and of the others, 73% are in favor of the new tax measure A. Use the tree diagram below to answer the following question. For Republican Against Democrat Against For Other Against What is the probability that...
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