What is the s to the 10-th power, if s is the sum of the solutions of the equation 2x2 - 2ix +10=0, where i=√(-1).

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