Recent content by EGD Eric

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    How to get the probability from the mean of a random variable?

    I think so.
  2. E

    How to get the probability from the mean of a random variable?

    Homework Statement From past experience, a professor knows that the test score of students taking a final examination is a random variable with mean 65. Give an upper bound on the probability that a student's test score will exceed 75. Homework Equations None that I know of. The...