6. Consider a data set A: (2, 8), (3, 6), (4, 9) and (5, 9). Which of the following is the proper interpretation of the ² value? (a) There's a 30% increase in the variation of the data set. (b) Thirty percent of the variation in the x values can be explained by knowledge of the y values. (c) Thirty percent of the variation in the y values can be explained by knowledge of the x values. (d) You've reduced the total variation by 70%. (e) None of the above.

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