Tasha examined the correlation between the weight and fuel economy of the 20 top-selling cars. She observed that the coefficient of determination was 62.3%.
For this data, the value of the correlation coefficient, r, is __________.
√.623
To find the value of the correlation coefficient, r, we need to take the square root of the coefficient of determination (R^2).
Given that the coefficient of determination (R^2) is 62.3%, we can find the correlation coefficient, r, by taking the square root of 62.3%:
r = √(62.3%)
Calculating this value, we have:
r ≈ √(0.623)
r ≈ 0.790
Therefore, for this data, the value of the correlation coefficient, r, is approximately 0.790.