Question 11
Ages of the First 12 United States Presidents at the Beginning of Their Terms in Office
President | Age (Years) | President | Ages (Years)
--- | --- | --- | ---
Washington | 57 | Jackson | 62
Adams | 62 | Van Buren | 55
Jefferson | 58 | Harrison | 68
Madison | 58 | Tyler | 51
Monroe | 59 | Polk | 50
Rooney | 58 | Taylor | 65
The table above lists the ages of the first 12 United States presidents when they began their first term in office. According to the table, what was the mean age, in years, of these presidents at the beginning of their terms? (Round your answer to the nearest tenth.)
**Editorial note for this self-study exercise:** Calculate from the twelve printed ages, including the source’s “Rooney” entry, without silently repairing the data. Round to the nearest tenth and enter years without units. This is a table-arithmetic exercise, not a verified historical dataset.
President | Age (Years) | President | Ages (Years)
--- | --- | --- | ---
Washington | 57 | Jackson | 62
Adams | 62 | Van Buren | 55
Jefferson | 58 | Harrison | 68
Madison | 58 | Tyler | 51
Monroe | 59 | Polk | 50
Rooney | 58 | Taylor | 65
The table above lists the ages of the first 12 United States presidents when they began their first term in office. According to the table, what was the mean age, in years, of these presidents at the beginning of their terms? (Round your answer to the nearest tenth.)
**Editorial note for this self-study exercise:** Calculate from the twelve printed ages, including the source’s “Rooney” entry, without silently repairing the data. Round to the nearest tenth and enter years without units. This is a table-arithmetic exercise, not a verified historical dataset.