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Pearson's r

Computing Pearson's r

Answers


  1. Compute the correlation of the two variables. \mathrm{0.4686}

  2. The mean is \mathrm{5}. The deviation score is \mathrm{6-4=2}.

  3. Small letters refer to deviation scores. Multiply the deviation score for each \mathrm{x} value by the corresponding deviation score for each \mathrm{y} value. Then add these values together. \mathrm{(-2)(0) + (0)(-1) + (2)(1) = 2}

  4. The correlation will not change. Since the scores are converted to deviation scores, adding \mathrm{12} will have no effect.