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How much should a healthy Shetland pony weigh? Let x be the age of the pony...

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 14 21
y 60 95 140 152 177


(c) Use a calculator to verify that

x = 56,

x2 = 826,

y = 624,

y2 = 86,658,

and

xy = 8,275.



Compute r. (Round your answer to three decimal places.)

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