What are the correlation coefficient and the regression coefficient for body weight and egg number in these 11 fish?
The computations needed to answer this question are given in the table below. To calculate the correlation and regression coefficients, we first obtain the sum of all the xi values (2xi) and the sum of all the yi values (2yi); these sums are shown in the last row of the table. We can calculate the means of the two variables by dividing the sums by the number of measurements, which is 11:
Was this article helpful?