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A train is made up of 50 railroad cars. Each car made need service with probability 0.05. Let X be the total number of cars in the train that need service.

a) Find the mean and standard deviation of X

b) Find the probability that no cars need service

c) Find the probability that at least two cars need service.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M91017094

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