Maths B

posted by Anna

Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths
were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.

  1. PsyDAG

    Z score = score in terms of standard deviations.

    Z = (score-mean)/SD

    Which Z score is highest?

  2. PsyDAG

    For explanation, find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores.

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