Question

• Use one of R’s datasets（trees). Using descriptive statistics, visualize this data numerically and graphically. You can use the following resource as a guide: Section 2.5 (p. 15) and 3.5 (P. 25) from “Using R for Data Analysis and Graphics ”.

• Make sure to look into:
  a) the summary of the data,

• b) display it in the histogram,

• c) boxplot,
  d) qqnorm
  e) other plots and functions.

Answer 1

data("trees")
#a
summary(data)
#b
hist(trees$Girth)
hist(trees$Height)
hist(trees$Volume)
#c
boxplot(trees$Girth)
boxplot(trees$Height)
boxplot(trees$Volume)
#d

qqnorm(trees$Girth)
qqnorm(trees$Height)
qqnorm(trees$Volume)

Just run these codes you will get several graphs