user: Question: what is the percent for other when the margin of error is ± 3%?
Columns: ['Poll source', 'Date(s) administered', 'Sample size', 'Margin of error', 'Barbara Boxer (D)', 'Carly Fiorina (R)', 'Other', 'Undecided']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Public Policy Polling (report)', 'October 29–31, 2010', '882', '± 3.3%', '50%', '46%', '—', '3%']
SQL:

assistant: SELECT "Other" FROM "Table" WHERE "Margin of error" = '± 3%';