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Derar Derar
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6 years ago
Before calculating a correlation coefficient, a researcher wants to determine whether the relationship between the two variables is linear. Which of the following would be most appropriate to use?
 
  a. Histogram c. Data matrix
  b. Frequency polygon d. Scatterplot

Ques. 2

If X is positively correlated with Y, one can conclude that
 
  a. X probably causes changes in Y.
  b. Y probably causes changes in X.
  c. changes in X and Y are both probably caused by Z.
  d. None of these is true.
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empi22empi22
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6 years ago
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Derar Author
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#2
6 years ago
I can't even begin to explain how much your help meant to me!
wrote...
#3
6 years ago
Happy to hear that, good luck with the rest of them
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