Question: We are given a normally distributed random variable X with = 100 and = 15. Find P (X > 120). Find k such as P(X

We are given a normally distributed random variable X with = 100 and = 15.

  1. Find P (X > 120).
  2. Find k such as P(X
  3. Find the two values where the middle 50% of the distribution of X lie.

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