When making a scatter diagram,
A) the values on the vertical axis go from highest at the bottom to lowest at the top.
B) the overall shape should be roughly square.
C) two dots are used to mark each score.
D) outlying values are excluded to maintain the proper shape.
Question 2
Which of the following calculations is necessary for figuring the correlation coefficient?
A) finding the grand mean
B) finding the cross-products of each person's X and Y raw scores
C) finding the means of X and Y
D) finding the difference between each person's X and Y raw scores
