Required:
The sample space of flipping a coin 3 times
The sample space of a fair coin flip is {H, T}.
The number of sequence of outcomes of three fair coin flips can be calculated using the formula
[tex]\begin{gathered} =\text{ 2}^n \\ Where\text{ n is the number of flips} \end{gathered}[/tex]For this problem, n = 3
Hence, the number of sequence of outcomes:
[tex]\begin{gathered} S\text{ = 2}^3 \\ =\text{ 8} \end{gathered}[/tex]The sample space is:
{HHH, HHT, HT H, HT T, T HH, T HT, T T H, T T T }