Question: What is the RCM that has a density of 9.7?
Schema: create table table_214920_1 (regional_county_municipality__rcm_ varchar, density__pop_per_km2_ varchar, PRIMARY KEY (regional_county_municipality__rcm_))
SQL: select regional_county_municipality__rcm_ from table_214920_1 where density__pop_per_km2_ = "9.7"