Learning Goal: I’m working on a r project and need an explanation and answer to

Learning Goal: I’m working on a r project and need an explanation and answer to help me learn.Hi! I have three questions as a part of my Biostatistics course that I need help with. I would really appreciate it if you can look into this and solve the questions using R. Thanks a lot, really appreciate it!
Requirements: Need to answer all questions.   |   .doc file