Find the value of the Pearson's coefficient r. A. 0.7077 B. -0.7077 C. 0.2469 D. 0.2351 47. What can be said about the relationship between the cost of advertising and the number of products sold? A. There is a strong, negative relationship between them. B. There is a very strong, negative relationship between them. C. There is a strong, positive relationship between them. D. There is a very strong, positive relationship between them. 48. What is the slope of its regression line? A. 55.7885 B. 0.7077 C. 2.7885 D. 1

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