Answer:
(HA, HB, HC, HD, TA, TB, TC, TD)
Step-by-step explanation:
Spinner : (a, b, c. d)
Coin : (H, T)
Sample space :
____ A _____ B ______ C ______ D
H __HA ____ HB _____ HC _____ HD
_
T__TA _____TB ______ TC _____ TD
Sample space : (HA, HB, HC, HD, TA, TB, TC, TD)