Astudy of voting chose 663 registered voters at random shortly after an election. of these, 72% said they had voted in the election. election records show that only 56% of registered voters voted in the election. which of the following statements is true about the boldface numbers? (a) 72% is a sample; 56% is a population(b) 72% and 56% are both statistics(c) 72% is a statistic and 56% is a parameter(d) 72% is a parameter and 56% is a statistic(e) 72% and 56% are both parameters