anonymous
  • anonymous
x (inches) 20 24 36 41 46 y (pounds) 2 4 12 15 20 -The linear correlation coefficient would be positive Using the data, what is the sample correlation coefficient r ? Round your answer to three decimal places.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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math&ing001
  • math&ing001
Did you see the equation that let you calculate r from values of x and y ?
anonymous
  • anonymous
Do you mean, the formula you have to put in calculator?
math&ing001
  • math&ing001
Yeah it looks something like this.
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math&ing001
  • math&ing001
But I think this is too much work, maybe you have something more easy to work with ?
anonymous
  • anonymous
I was given some directions on how to enter it into the calculator
math&ing001
  • math&ing001
You mean you enter the x and y values to the calculator and it automatically calculates r for you ?
anonymous
  • anonymous
It creates a scatter plot
math&ing001
  • math&ing001
I found this tool online that calculates r from x and y values. http://www.socscistatistics.com/tests/pearson/Default2.aspx According to it r=0.996 in our case. I think it's meaningless to just do all that work by yourself, just basic calculations.
anonymous
  • anonymous
Wow, that's really useful! Thanks again
math&ing001
  • math&ing001
No probs !

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