Question: What does it mean if a linear correlation coef cient is
What does it mean if a linear correlation coefﬁcient is close to zero? Draw two scatter diagrams for which the linear correlation coefﬁcient is close to zero.
Answer to relevant QuestionsMatch the linear correlation coefﬁcient to the scatter diagrams. The scales on the x- and y-axes are the same for each diagram. (a) r = 0.787 (b) r = 0.523 (c) r = 0.053 (d) r = 0.946 (a) Draw a scatter diagram of the data, (b) By hand, compute the correlation coefﬁcient, and (c) Determine whether there is a linear relation between x and y. Fair Isaacs Corporation (FICO) credit score is used to determine your creditworthiness. It is used to help determine whether you qualify for a mortgage or credit and is even used to determine insurance rates. FICO scores ...Miles per Gallon Suppose that we add the Ford Taurus to the data in Problem 29. A Ford Taurus weighs 3305 pounds and gets 19 miles per gallon. (a) Redraw the scatter diagram with the Taurus included. (b) Recompute the linear ...Theodore Coladarci and Irv Kornﬁeld from the University of Maine found a correlation of 0.68 between responses to questions on the RateMyProfessors.com Web site and typical in-class evaluations. Use this correlation to ...
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