## Toy Cars Data

### Description

The `toycars`

data frame has 27 rows and 3 columns.
Observations are on the
distance traveled by one of three different toy cars on
a smooth surface, starting from rest at the top of a 16 inch long ramp
tilted at varying angles.

### Usage

`toycars`

### Format

This data frame contains the following columns:

- angle
tilt of ramp, in degrees

- distance
distance traveled, in meters

- car
a numeric code (1 = first car, 2 = second car, 3 = third
car)

### Examples

```
toycars.lm <- lm(distance ~ angle + factor(car), data=toycars)
summary(toycars.lm)
```