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What is the mean and variance of university

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Reference no: EM131886931

Assume 70% of students at a university pass biology class without having to retake it. If 5 students were selected at random, answer the following questions.

  1. What is the mean and variance of university students passing biology class without having to retake it?
  2. What is the probability that exactly 3 students have passed without taking it again? (Do not use the Binomial table for this part/ Use the formula)
  3. That at least 2 passed the course without taking it again? (You may use the Binomial table for this part)

Reference no: EM131886931

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