The house has three bedrooms and one and a half 'baths'. [=one full bathroom and one bathroom with only a sink and a toilet]
Would you like me to 'draw/run a bath' for you? [=to fill the bathtub with water for you?]
a 'full bath' [=a bathroom with a sink, toilet, and a bathtub or shower]
(..) I can let the world know what you did. But I need you now, soldier. I was so scared you weren't real. There's a storm coming. I'm just going to grab the laundry. I'll draw his bath. It's okay. Okay. John! I've almost got it! Charles, you just watch the baby. (..)2001 A Beautiful Mind