Describe what is meant by a negative relationship and a positive

1) Describe what is meant by a negative relationship and a positive relationship between two variables. 2) A sample of n = 25 pairs of scores (X and Y values) produces a correlation of r = –0.40. Are these sample data sufficient to conclude that there is a significant non-zero correlation between X and Y in the population? Use a two-tailed test at the .05 level of significance. 3) For the data below: a. Compute the Pearson correlation. b. Find the regression equation for predicting Y from X. X       Y 5      10 3       6 6        7 4       3 2       4