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Find the mean and standard deviation of x

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Reference no: EM132474272

Suppose a poll of 20 voters is taken in a large city. The purpose is to determine x, the number who favor a certain candidate for mayor. Suppose that 40% of all the city's voters favor the candidate.

  • Find the mean and standard deviation of x.
  • What is the probability that x <=10.
  • Find the probability that x > 12.
  • Find the probability that x = 11
  • Graph the probability distribution of x.

Reference no: EM132474272

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