The data was extracted from the 1974 Motor Trend US magazine, and comprises fuel consumption and 10 aspects of automobile design and performance for 32 automobiles (1973–74 models).
Here, we take only 5 variable as shown in the table below.
## mpg wt gear cyl
## Min. :10.40 Min. :1.513 Min. :3.000 Min. :4.000
## 1st Qu.:15.43 1st Qu.:2.581 1st Qu.:3.000 1st Qu.:4.000
## Median :19.20 Median :3.325 Median :4.000 Median :6.000
## Mean :20.09 Mean :3.217 Mean :3.688 Mean :6.188
## 3rd Qu.:22.80 3rd Qu.:3.610 3rd Qu.:4.000 3rd Qu.:8.000
## Max. :33.90 Max. :5.424 Max. :5.000 Max. :8.000
## qsec
## Min. :14.50
## 1st Qu.:16.89
## Median :17.71
## Mean :17.85
## 3rd Qu.:18.90
## Max. :22.90