Math Solutions

[See Solution] In the following data there are three scores (x , y , z) for each of the n = 5 individuals. Sketch a graph showing the relationship between

Question: In the following data there are three scores ( x , y , z ) for each of the n = 5 individuals.

  1. Sketch a graph showing the relationship between X and Y. Compute the Pearson correlation between X and Y.
  2. Sketch a graph showing the relationship between Y and Z. Compute the Pearson correlation between Y and Z.
  3. Given the results from (a) and (b) what would you predict for the correlation between X and Z
  4. Sketch a graph showing the relationship between X and Z. Compute the Pearson correlation between X and Z.
  5. What general statement can you make concerning relationship among correlations? If X is related to Y and Y is related to Z, does this necessarily mean that X is related to Z.

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