To what family of orchestrail instruments does the double bass belong?

Answer 1

The double bass is said to belong to the violin family, and in general, wide terms, this is so. However, the viola and double bass have much more in common than either have with the violin, and if you find a recording of the bass being played in its highest ranges, it is easy to mistake it for a viola. So for general purposes, it can be said that the double bass is a member of the violin family, but it is really a member of the viola family.