If theta is in the first quadrant and cos theta = 12/13, what is sin(1/2 theta)?
Determine your answer without using a
calculator. Rationalize the denominator
if necessary.

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