Question: Jack runs a small convenience store, where he sells freshly baked cookies. Jack has experimented by charging different prices for the cookies on randomly selected

Jack runs a small convenience store, where he sells freshly baked cookies. Jack has experimented by charging different prices for the cookies on randomly selected days, and recording the quantity sold. A scatter diagram for the data is shown opposite in Exhibit 3.42. Which of the following r-values best matches this scatter diagram? Why?
a. + 0.75
b. – 0.88
c. + 0.22
d. – 0.11

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