Find the unit rate and show step by step and explain how you do each step . i am going to give you three problems answer them and explain each step and how you did it and got the answer .

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