Answer :
First, I would show all the outcomes possible. To determine the number of the total outcomes, you use the formula: rⁿ, where r is the number of outcomes in 1 flip, and n is the number of lips. Thus, 2³ = 8 outcomes. These outcomes are:
1. HHH
2. TTT
3. HHT
4. HTT
5. HTH
6. THH
7. TTH
8. THT
From the given outcomes, there are 3 outcomes that has at least two tails. These are the ones in bold characters.
1. HHH
2. TTT
3. HHT
4. HTT
5. HTH
6. THH
7. TTH
8. THT
From the given outcomes, there are 3 outcomes that has at least two tails. These are the ones in bold characters.