Graph below shows the observations of variableyas a function of variablesx. Isyrelated tox? What is an estimate of the linear correlation coefficient betweenyandx?

4. Graph below shows the observations of variable y as a function of variables x. Is y related to x? What is an estimate of the linear correlation coefficient between y and x? 0.8 0.6 0.4 0.2 > 0 -0.2 -0.4 -0.6 -0.8 -1 -4 -3 -2 -1 2 3 4 x O