Missing solution for e-stat03-descriptive

[Jen Wei]

Currently, there are two task blocks under the Observations section - guessing the second should be a solution block?

data-science-curriculum/exercises/e-stat03-descriptive-master.Rmd

Lines 405 to 412 in e47f4a3

 <!-- task-begin --> 
 - For what values of `slope` is the correlation positive? 
 - For what values of `slope` is the correlation negative? 
 <!-- task-end --> 
 <!-- task-begin --> 
 - For what values of `slope` is the correlation positive? 
 - For what values of `slope` is the correlation negative? 
 <!-- task-end --> 

[Zachary del Rosario]

Fixed with #9