Question

4 Scatterplots Match these values of r with the five scatterplots shown here and the next page: 0.268, 0992.-1, 0.746, and 1 . on y 14 12 00 a1 02 30405 0.6 0.7 0.8 0.9 OS 0.6 07 Graphs in Statistical A plore! Exercises 9 and 10 provide two data sets from " by E J. Anscombe, The American Statistician, Vol. 27. For each exercise a. Construct a scatterplot b. Find the value of the linear correlation coefficient r, then determine whether there is suft stical Analvi Ex cient evidence to support the claim of a linear correlation between the two variables. c. Identify the feature of the data that would be missed if part (b) was completed without con. structing the scatterplot. 9. 14 6 4 12 75 y 9.14 8.14 8.74 8.77 9.26 8.10 6.13 3.10 9.13 7.26 4.74 10. 10 813 9 11 14 6 4 1275 y 7.46 6.77 12.74 7.11 7.81 8.84 6.08 5.39 8.15 6.42 5.73 Exploret Exercises 9 and 10 provide two dota sets from "Graphs in Sta a. Construct a scatterplot b. Find the value of the linear correlation coeficient r, then determine w For each exercise cient evidence to support the claim of a linear correlation between the t e. Identify the feature of the data that would be missed if part (b) was completed w structing the scatterplot. 1464 12 9 9 13 x10 3.10ーー9.13.7.26 9.26一8.10一一6.13 877 8.74 9.14 8.14 У 8 13911 14 6 10. x 10 12 У 7.46 6.77 12.74| 7.11 7.81_-8.84-6.08-5.398.1 5 6.42 5.73

Answer 1

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