Math Solutions

(See Solution) Determine the following normal probabilities. Assume that the population mean is 150, the population standard deviation is 30, and the measures

Question: Determine the following normal probabilities. Assume that the population mean is 150, the population standard deviation is 30, and the measures are normally distributed .

  1. What is the probability that a randomly chosen individual observation would be between 140 and 170?
  2. What is the probability that a randomly chosen individual observation would be less than
    90?
  3. What value do 40 percent of all other values in the distribution exceed? Show your calculation.

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