Probability

Please explain to the class the questions below:
1) Discuss the range of possible values for probabilities. Give examples to support each.
2) On an exam on probability concepts, Sue had an answer of 13/8 for one problem. Explain how she knew that this result was incorrect.
3) Tomorrow Freddy is playing in an important soccer game. He reasons that there are three possible outcomes (they could win, tie, or lose) so the probability of winning must be 1/3. Is this reasoning correct? Why or why not?