Where did the 10% Scandinavian, Norwegian and Swedish on my ancestry test come from?

The parts of my ancestry results before the updates, the Scotland, Ireland and Wales, Native American ancestry comes from my mother.

I'm mixed with the whole world.

England and northwestern Europe
Scotland
Ireland
Wales
Sweden and Scandinavia
Germanic Europe
Norway
French
Italy and Greece
Portugal
Germany
Middle East
Benin/Togo
Cameroon
Mali
Nigeria
Senegal
North Africa
Africa south Hunter gatherers
East and South Asia
Polynesia and Pacific islands
Native American


My genetic communities are mostly Tennessee and southern states settlers, Northeast Tennessee settlers, Kentucky settlers, Virginia settlers. Central Tennessee settlers, Southeast Tennessee settlers and West Tennessee settlers, North Carolina settlers, Alabama settlers and Mississippi settlers.

I have some Smoky mountains ancestors too when I clicked on some of the Tennessee parts.