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The mean of final scores for a Statistics course is 81 with a standard deviation of 19.5. Find: The z-score for a mark of 50.

  1. The mean of final scores for a Statistics course is 81 with a standard deviation of 19.5.

Find:

  1. The z-score for a mark of 50. [2 marks]
  2. Would a student having a score 1.55 standard deviations below the mean pass the course (Consider the passing score 50%) [3 marks]

Round answers to two decimal places as needed.

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