CREATE TABLE table_67348 ("Poll source" TEXT, "Date ( s )  administered" TEXT, "Sample size" TEXT, "Margin of error" TEXT, "Jerry Brown  ( D ) " TEXT, "Meg Whitman  ( R ) " TEXT)

How many people participated in the Rasmussen Reports poll on October 13, 2010?
SELECT "Sample size" FROM table_67348 WHERE "Poll source" = 'rasmussen reports' AND "Date(s) administered" = 'october 13, 2010'
SELECT "Sample size" FROM "table_67348" WHERE "Date(s) administered" = 'october 13, 2010' AND "Poll source" = 'rasmussen reports'