Linear Correlation. What is the requirement to test if there is a linear correlation for a population? O A. r should be greater than 0 O B. there must be more than 5 observations O C. none of the other answers O D. The scatterplot must show an approximately straight line and data should contain no outliers Suppose we compute the value of / = 0.834, and the critical values of r = 10.488, then O A. there is not sufficient evidence to support the claim of a linear correlation. O B. there is sufficient evidence to support the claim of a linear correlation. O C. none of the other answers