Mr. Dotson wants to know if his neighbors would be interested in a community watch. he surveys ever fourth house on his street and concluded that 70% would be interested. Is This conclusion valid. explain

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