new version
Merge branch 'master' of https://github.com/lli48/Biostat778_HW1

Conflicts:
HW1_P1.R
HW1_P2.R
Homework1_1.0.tar.gz
Merge branch 'master' of https://github.com/lli48/Biostat778_HW1

Conflicts:
	Homework1_1.0.tar.gz