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17 September, 13:48

Scores on a test have a mean of 70 and a standard deviation of 11. Michelle has a score of 48. Convert Michelle's score to z score.

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Answers (2)
  1. 17 September, 15:36
    0
    -2.

    Step-by-step explanation:

    The z-score = (x - m) / d where x = individual score, m = the mean and d = the standard deviation.

    So the required value = (48 - 70) / 11

    = - 2 (answer).
  2. 17 September, 17:46
    0
    Answer: - 2
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