how do I find the correlation coefficient r?
Jesse put the heartbeat and lifespan data into a statistical software program and found the coefficient of determination is 0.45.
The value of the correlation coefficient is __________.
√.45
Jesse entered the weight (in pounds) and weekly food cost data (in $) into a statistics software package and found a regression equation of ŷ = .5 + .16x.
This means that, on average, for each additional pound of body weight, the weekly feed cost goes (A) __________ by (B) __________ cents.
To find the correlation coefficient (r) from the coefficient of determination (r^2), you can take the square root of the coefficient of determination.
In this case, since the coefficient of determination is 0.45, we can find the correlation coefficient by taking the square root of 0.45.
Using a calculator or software program, calculate the square root of 0.45.
The result will give you the value of the correlation coefficient (r).