wwwmathalcornStudentPlayerTestaspxtestId 1 203 70647centervi

www.mathalcorn/Student/PlayerTest.aspx?testId= 1 203 70647&centervi; MyStatLab. Final Exam This Test: 280 pts For the following data set, (a) Draw a scatter diagram, (b) by hand, compute the correlation coefficient, and (c) comment on the type of relation that appears to exist between x and y A) Which of the following scatter diagrams coresponds to the given data? raven data?

Solution

a)

Trying to plot the points, the correct plot is

OPTION A. [ANSWER, CORRECT GRAPH]

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b)

Using technology, we get the correlation,

r = 0.985728469 = 0.986 [ANSWER]

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c)

The linear correlation coefficient is close to [1] so [a strong linear correlation] exists between x and y.