Sample of pennies and their ages. Taken in 2004.
Format
A data frame with 648 observations on the following 2 variables.
- year
Penny's year.
- age
Age as of 2004.
Examples
hist(penny_ages$year)
Sample of pennies and their ages. Taken in 2004.
A data frame with 648 observations on the following 2 variables.
Penny's year.
Age as of 2004.
hist(penny_ages$year)