Can any body help me with these questions using R studios? Thank u very very much

This seems like homework, more so, it seems like part of a lesson. It instruct you.
Please see the homework policy.
You are welcome to ask us specific questions of your own, but don't point to a list of questions others have you and ask us to explain them to you. That appears to be just lazy. At least say what part of the material you don't understand and need more help with, but actually take the effort to identify these points. Thanks

FAQ: Homework Policy

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