How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y be the average weight of the pony (in kilograms). x 3 6 12 20 26 y 60 95 140 160 189 (a) Make a scatter diagram of the data and visualize the line you think best fits the data. Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Would you say the correlation is low, moderate, or strong? low moderate strong Would you say the correlation is positive or negative? positive negative (c) Use a calculator to verify that x = 67, x2 = 1265, y = 644, y2 = 93,546, and xy = 10,544. Compute r. (Round your answer to three decimal places.) As x increases from 3 to 26 months, does the value of r imply that y should tend to increase or decrease? Explain your answer. Given our value of r, y should tend to increase as x increases. Given our value of r, we can not draw any conclusions for the behavior of y as x increases. Given our value of r, y should tend to remain constant as x increases. Given our value of r, y should tend to decrease as x increases.
How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y be the average weight of the pony (in kilograms).
| x | 3 | 6 | 12 | 20 | 26 |
| y | 60 | 95 | 140 | 160 | 189 |
Flash Player version 10 or higher is required for this question.
You can get Flash Player free from Adobe's website.
(b) Would you say the correlation is low, moderate, or strong?
Would you say the correlation is positive or negative?
(c) Use a calculator to verify that
Compute r. (Round your answer to three decimal places.)
As x increases from 3 to 26 months, does the value of r imply that y should tend to increase or decrease? Explain your answer.
Expert Answer
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