19. On the 24th of December for the past 10 years it has snowed eight times. What is the chance for snow this next December 24?

20. Congressman X is up for his 6th term. Thus far in five elections he has won by 58,56,62,70, and 54 percent. On this basis of past record, with no new factors entering into the coming election, by what percentage should he win the next election?
Help please.. thank you!