A fair coin is tossed three times in succession. The sample space is​ shown, where H represents a head and T represents a tail. Find the probability of getting exactly zero tails . A table Headed Sample Space (Toss 1,Toss 2, Toss 3) is shown. The results are in four rows listing Toss 1 first, Toss 2 second, and Toss 3 third. For row 1: (H, H,H), (T, H,H). For row 2: (H, H,T), (T, H,T). For row 3: (H, T,H), (T, T,H). For row 4: (H, T,T), (T, T,T).
The probability of getting exactly zero tails is __