Fixes #9: adjust Chapter 2 Exercise 10 d-h to actual Boston data set
Merge pull request #11 from justmarkham/master

Update answers for Ch2 and Ch3
Errors in solution 6: Ans to q1 is 37.7 and q2 is 50
Errors in solution 6: Ans to q1 is 37.7 and q2 is 50
Merge pull request #16 from sjuvekar/master

Errors in solution 6: Ans to q1 is 37.7 and q2 is 50
Reworked ch4.2
Merge pull request #17 from clarkfitzg/master

Reworked ch4.2