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anonymous
 one year ago
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.
anonymous
 one year ago
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.

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math&ing001
 one year ago
Best ResponseYou've already chosen the best response.1Did you see the equation that let you calculate r from values of x and y ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you mean, the formula you have to put in calculator?

math&ing001
 one year ago
Best ResponseYou've already chosen the best response.1Yeah it looks something like this.

math&ing001
 one year ago
Best ResponseYou've already chosen the best response.1But I think this is too much work, maybe you have something more easy to work with ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I was given some directions on how to enter it into the calculator

math&ing001
 one year ago
Best ResponseYou've already chosen the best response.1You mean you enter the x and y values to the calculator and it automatically calculates r for you ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It creates a scatter plot

math&ing001
 one year ago
Best ResponseYou've already chosen the best response.1I 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
 one year ago
Best ResponseYou've already chosen the best response.0Wow, that's really useful! Thanks again
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