Make a plot with x axis extending from 0 to 600 and y axis from o to 250. Plot t

Question

Make a plot with x axis extending from 0 to 600 and y axis from o to 250. Plot the original data on these axes. Then plot the new data using a different color or symbol. The two plots look very different. Nonetheless, the correlation is exactly the same for measurements. Why do you know that this is true without doing any calculations? Find the two correlations to verify that they are the same. Teaching and research. A college newspaper interviews a psychologist about ratings of the teaching of faculty members. The psychologist says, "The evidence indicates that the correlation between the research productivity and teaching rating of faculty members is close to zero." The paper reports this as versa." Explain why the paper's report is wrong. Write a statement in plain Sloppy writing about correlation. Each of the following statements contains a blunder. Explain in each case what is wrong. "There is a high correlation between the gender of American workers and their income."

Explanation / Answer

4.34 The paper's report is wrong because the correlation close to zero indicates that there is no linear association between the given variables. So if the corrlation between research productivity and the student's rating of faculty member is zero, this means that there is no relationship between research productivity and student's rating. Hence, saying this that good researcher tend to have a poor teacher and vice versa is not accurate. This can be said in the case if the correlation is very close to -1. The correct statement should be:

There is no relation in teaching quality and research quality.

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