Ignoring the outlier, describe the direction, form, and strength of the relationship. The researchers say that this and relationships among other variables they measured are evidence for cyclic changes in climate that are linked to changes in the sun's activity. weak positive association
moderate positive association strong positive association weak negative association
moderate negative association strong negative association
(a) Find the single outlier in the data. This point strongly influences the correlation. What is the correlation with this point? (Round your answer to two decimal places.) What is the correlation without this point? (Round your answer to two decimal places.)
(b) Is the outlier also strongly influential for the regression line? Calculate the regression line with the outlier. (Round your slope to two decimal places, round your y-intercept to one decimal place.) Calculate the regression line without the outlier. (Round your slope to two decimal places, round your y-intercept to one decimal place.)