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 # Methodology
 Upload your methodology description here
+
+- After discussion with professor we decided to delete all the cases with grade of zero, and cases with unreasonably extreme data 
+- Then we will change our research aim to find what and how features are correlated with students’ grades for online courses given they finished assignments.
+- We have two options of methodology. We decided to compare two methodologies.
+  - Method 1: More traditional regression model with cross validation
+  - Method 2:  Classification And Regression Tree (CART) analysis or Bayesian
+
+Next week:
+Clean the data, do the deletion 
+Study how to use R to produce Scatter Plots and Correlation Matrix
+
+