Lincoln technical college has 856 students. they expect 700 guests for a special speaker. the custodian has set up 1,500 chairs. how many more chairs are needed if everyone is to have a seat?

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