TA comments on hw02

[hsmohammed]

Hi,

Thanks for your homework 02 submission. Your submission is tidy and you achieved most of the required tasks. I just have some comments below.

• You should always describe what you are doing in answering the questions, even if it seems obvious.
• You should always present your code in the final html output. Don't hide it using echo = T.
• Your figures axes labels must always be visible.

Thanks!