What is the coefficient of correlation for these data? -0.7839 0.8854 0.7839 -0.8854
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 2ECP
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Question
A candy bar manufacturer is interested in trying to estimate how sales are influenced by the price of their product. To do this, the company randomly chooses 6 small cities and offers the candy bar at different prices. Using candy bar sales as the dependent variable, the company will conduct a simple linear regression on the data below:
City |
Price ($) |
Sales |
River City |
1.30 |
100 |
Hudson |
1.60 |
90 |
Ellsworth |
1.80 |
90 |
Prescott |
2.00 |
40 |
Rock Elm |
2.40 |
38 |
Stillwater |
2.90 |
32 |
What is the coefficient of
-0.7839 |
||
0.8854 |
||
0.7839 |
||
-0.8854 |
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