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summary(cars)
speed dist Min. : 4.0 Min. : 2.00 1st Qu.:12.0 1st Qu.: 26.00 Median :15.0 Median : 36.00 Mean :15.4 Mean : 42.98 3rd Qu.:19.0 3rd Qu.: 56.00 Max. :25.0 Max. :120.00
