Can someone explain how to determine the followingquestion: Suppose that in your
ID: 2917070 • Letter: C
Question
Can someone explain how to determine the followingquestion: Suppose that in your city 28% of voters are registeredDemocrats and 27% Republicans and 12% others. Voters notaligned with any official party are termed Independents. Youare conducting a poll by calling registered voters at random. In the first three calls what is the probability that you: a. Call all Republicans b. Call no Democrats c. Call at least 1 Independent I have been trying to follow the examples in my book -Business Statistics - by Sharpe, DeVeaux and Velleman. I amjust not getting it...Thank you.. Carol Can someone explain how to determine the followingquestion: Suppose that in your city 28% of voters are registeredDemocrats and 27% Republicans and 12% others. Voters notaligned with any official party are termed Independents. Youare conducting a poll by calling registered voters at random. In the first three calls what is the probability that you: a. Call all Republicans b. Call no Democrats c. Call at least 1 Independent I have been trying to follow the examples in my book -Business Statistics - by Sharpe, DeVeaux and Velleman. I amjust not getting it...Thank you.. CarolExplanation / Answer
28% Democrats 27% Republicans 12% others 33% Independent All republicans would be a chance of (0.27)^3 = 0.019683 No democrats would be (1-0.28)^3 = 0.373248 At least 1 Independant would be 0.33+0.33+0.33 - 3*0.33*0.33 - 0.33*0.33*0.33 = 0.627363 where the first three terms are the chance of each one happeningadded together, and the last terms are the consideration of overlapsuch as both the first and the second person being Independant.These are removed so that the incident is not counted twize. All of these numbers are relative to 1, where 1 means 100%certainty that an event will occur.