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[Step-by-Step] A population of scores forms a normal distribution with a mean of µ = 40 and a standard deviation of ơ = 12. What is the probability of randomly

Question: A population of scores forms a normal distribution with a mean of µ = 40 and a standard deviation of ơ = 12.

  1. What is the probability of randomly selecting a score less than X = 34?
  2. What is the probability of selecting a sample of n = 9 scores with a mean less than M = 34?
  3. What is the probability of selecting a sample of n = 36 scores with a mean less than M = 34?

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