Kaggle
Data analysis tutorials (kaggle list)

R resources:

R and Rstudio
R Manuals (e.g.: R-release versions of An Introduction to R and R Data Import/Export)
Swirl

Where to learn more about data analysis:

• Earn a certificate in Large Data Analysis as an undergraduate at UI
• Earn a Coursera Data Science certificate or take Statistics and Data Analysis courses for free. NOTE: I do not know how much or if a coursera certificate is useful, but you can take all the certificate courses except the capstone for free.