for a set of data, the line best fit is given by the y-0.697x + 3.431 anr r^2 = .325. what is the correlation co efficient
To find the correlation coefficient, typically represented by the symbol "r," we need to take the square root of the coefficient of determination (R-squared), which is represented by "r^2."
Given that the R-squared is 0.325, we can find the correlation coefficient as follows:
r = sqrt(r^2)
r = sqrt(0.325)
Using a calculator or math software, we can find that the square root of 0.325 is approximately 0.570.
Therefore, the correlation coefficient, r, is approximately 0.570.