what python library is used to check for the existence of a direction of relationship between bivariate data? a. correlation b.regression c.hypothesis d. interpretion
2. Miguel needs to analyze the strength of the relationship between two variables. what is the correct statistical method he needs to conduct? a. z-test b.Pearson's r c. Pearson's co d. regression analysis
3. which of the following Pearson coefficients is considered having the strongest positive correlation?
a. r =0.93
b.r =0.81
c. r = 0.58
d.r = 0. 75​