MATH203ASS1-converted.pdf - Question 1: a) Number of books...

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Question 1:a) Number of books read they are: QuantitativeGrades: Qualitativeb) Grade Distribution HistogrammSource code:x<-c(8,5,1)barplot(x, names.arg = c("A", "B","C"))c)GradeMEANMEDIANMODERANGEVARIANCESTANDARDDEVIATIONA3736.5342975.714298.701396B2521n/a24899.433981C222222n/an/an/ad)𝑧 =𝑥−𝑥̅𝑠=28−378.701396= 1.0343it means that this result is not unusual only 1.0343 standard deviations above the mean
e)𝑧 =𝑥−𝑥̅𝑠=28−259.433981= 0.318This mean this is very close to the mean but still above the meanf) I would expect them to have a B since its very close to the mean
Question 6:a)Source code:
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