Dan paid 7.5% sales tax when he bought a new smart watch the sales tax was $30.75 what was the total cost of the smart watch including tax?

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