1. The probability would be 5/100, simplified would be 1/20.
2. The probability would be 1600/10,000, simplified would be 16/100.
3. A vowel would be 6/13 and a constant would be 7/13.
4. The experimental probability of getting heads would be 12/20, simplified 3/5. This may differ from the theoretical probability because you are only flipping it 20 times.
