The weight (in pounds) and height (in inches) for a child were measured every few months over a two-year period. The results are given in the table.


A 2-column table with 9 rows. Column 1 is labeled Weight (x) with entries 8, 12, 18, 24, 30, 32, 35, 37, 40. Column 2 is labeled Height (y) with entries 22, 23, 26, 30, 32, 33, 35, 36, 38.


Using technology, what is the correlation coefficient?


–0. 997

–0. 503

0. 503

0. 997

Respuesta :

Using a calculator, it is found that the correlation coefficient is of 0.997.

What is a correlation coefficient?

It is an index that measures correlation between two variables, assuming values between -1 and 1.

If it is positive, the relation is positive, that is, they are direct proportional. If it is negative, they are inverse proportional.

If the absolute value of the correlation coefficient is greater than 0.6, the relationship is strong.

In this problem, we have the data-set for the weight and for the height. To find the coefficient, we insert each data-set in the calculator. Doing this, we find that the coefficient is of 0.997.

More can be learned about correlation coefficients at https://brainly.com/question/25815006