Question

Brady tosses a coin three times. Each toss could be heads or tails. Which

outcome would be included in the compound event "at least two tails"?
First Second Third Sample space
toss toss toss outcomes
H.-- HHH
H
T
HHT
H
HTH
HTT
H
THH
H-
T. THT
H OTTH
T
TTT
O A. HHT
O B. HTH
O C. HTT
D. THH

Answer 1

Option C

Explanation:

HHH → All heads

HHT → Two heads + one tail

HTH → Two heads + one tail

HTT → Two tails + one head

THH → One tail + two heads

THT → Two tails + one head

TTH → Two tails + one head

TTT → All tails

Therefore, At least two tails means → Sample space outcome with two tails Or all tails

Therefore, from the given options HTT is having two tails.

Option C is the correct option.