The table below shows the total votes and valid votes for Village A over three different years: Year Total Votes Valid Votes 2000 2500 2250 2005 3800 ...
Question
The table below shows the total votes and valid votes for Village A over three different years:
| Year | Total Votes | Valid Votes |
|---|---|---|
| 2000 | 2500 | 2250 |
| 2005 | 3800 | 3250 |
| 2010 | 3400 | 3000 |
What is the approximate average number of invalid votes in Village A over these years?