In a certain city, 47% of the registered voters are Democrats. If eight voters are sleeted at random, determine the probability that a) exactly four of them are democrats b) fewer than four of them are democrats c) at least three of them are democrats d) at least three of them are not democrats
In a certain city, 47% of the registered voters are Democrats. If eight voters are sleeted...
Car inspection: Of all the registered automobiles in a city, 5% fail the emissions test. Eight automobiles are selected at random to undergo an emissions test. Round the answers to at least four decimal places. ol. Part 1 of 4 (a) Find the probability that exactly three of them fail the test. The probability that exactly three of them fail the test is Part 2 of 4 (b) Find the probability that fewer than three of them fail the test....
3) If 40% of the voters in a city are registered Republican, what is the probability that a random sample of eight voters includes at least two Republicans?
3) If 40% of the voters in a city are registered Republican, what is the probability that a random sample of eight voters includes at least two Republicans?
Of all the registered automobiles in a city, 12% fail the emissions test. Fourteen automobiles are selected at random to undergo an emissions test. Round the answers to four decimal places. (a) Find the probability that exactly three of them fail the test. (b) Find the probability that fewer than three of them fail the test. (c) Find the probability that more than two of them fail the test. (d) Would it be unusual for none of them to fail...
Car Inspection: Of all the registered automobiles in a city, 9% fall the emissions test. Nine automobiles are selected at random to undergo an emissions test. Round the answers to four decimal places. Part 1 of 4 (a) Find the probability that exactly four of them fall the test. The probability that exactly four of them fall the test is Part 2 of 4 (b) Find the probability that fewer than four of them fail the test. The probability that...
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...
Car inspection: Of all the registered automobiles in a city, 8% fail the emissions test. Fourteen automobiles are selected at random to undergo an emissions test. Round the answers to four decimal places. Part 1 of 4 (a) Find the probability that exactly three of them fail the test. The probability that exactly three of them fail the test is Part 2 of 4 (b) Find the probability that fewer than three of them fail the test. The probability that...
Voting records in a certain state show that 53% of those registered to vote are Democrats. In order to gather information for an upcoming story about the election, a news organization sends 9 of its reporters to choose a random registered voter to interview. The reporters are working independently, so it is possible (but unlikely) that some voter is chosen by more than one of the reporters. What is the probability that at most 6 of the 9 reporters choose...
Of all the registered automobiles in a city, 9% fail the emissions test. Twelve automobiles are selected at random to undergo an emissions test. Round the answers to four decimal places. (a) Find the probability that exactly three of them fail the test. (b) Find the probability that fewer than three of them fail the test. (c) Find the probability that more than two of them fail the test. (d) Would it be unusual for none of them to fail the...
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?