Each of us has 128 x 5th great grandparents (assuming no inbreeding) which, if only one of them was African, suggests that your cousin might be about 0.78% African.

Consequently, a result of 2% African, is a little more than might expected, but certainly a reasonable value.

Each of us has 128 x 5th great grandparents (assuming no inbreeding) which, if only one of them was African, suggests that your cousin might be about 0.78% African.

Consequently, a result of 2% African, is a little more than might be expected, but certainly a reasonable value.