## Source

Bureau of Labor Statistics.

## References

Kitchens, L. J. (2003) *Basic Statistics and Data Analysis*.
Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

## Examples

```
plot(cpi ~ year, data = Cpi, type = "l", lty = 2, lwd = 2, col = "red")
barplot(Cpi$cpi, col = "pink", las = 2, main = "Problem 1.34")
```