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How do I find r for this set of data values? x: 3, 7, 15, 36, 70 y: 40, 35, 30, 28, 17 other info:

How do I find r for this set of data values?

x: 3, 7, 15, 36, 70

y: 40, 35, 30, 28, 17

other info: x=131,x²=6479,y=150,y²=4798,andxy=3013

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