At a party, 70 people are right-handed and 12 people are left-handed.
What is the ratio of right-handed
people to the total number of people
at the party?
[?]:[ ]
Reduce the ratio to lowest terms?

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is