4 questions using www.overleaf.com (Latex) preferably so I can see the solution

4 questions using www.overleaf.com (Latex) preferably so I can see the solution

4 questions using www.overleaf.com (Latex) preferably so I can see the solution in scientific notation etc.
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Link copied from the document for convenience: https://lib.stat.cmu.edu/DASL/Datafiles/carmpgdat.html