download US Arrests datasets from the Rdataset site:

#download US Arrests dataset from the vincentarelbundock Rdatasets site

theURL <- "https://raw.githubusercontent.com/vincentarelbundock/Rdatasets/master/csv/datasets/USArrests.csv"

arrestUSA <- read.table (file = theURL, header = TRUE, sep = ",")

head(arrestUSA)
##            X Murder Assault UrbanPop Rape
## 1    Alabama   13.2     236       58 21.2
## 2     Alaska   10.0     263       48 44.5
## 3    Arizona    8.1     294       80 31.0
## 4   Arkansas    8.8     190       50 19.5
## 5 California    9.0     276       91 40.6
## 6   Colorado    7.9     204       78 38.7

histograms, plots, boxplots: