When studying the effect of variable x on variable y, we observed a very weak (r=0.08) correlation between the two variables What can we conclude about them? Select one ay has caused x bx has caused y C. y is strongly associated with x and there may be no need for a second independent variable . Regardless of the range of data. further changes in x will lead to definite changes in e is not associated with X There may or may not be another variable required to detine the observed changes in