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.

c) 72% is a statistic and 56% is a parameter.

Step-by-step explanation:

Previous concepts

A statistic or sample statistic "is any quantity computed from values in a sample", for example the sample mean, sample proportion and standard deviation

A parameter is "any numerical quantity that characterizes a given population or some aspect of it".

Solution to the problem

For this case we know that they select a sample of 663 registered voters and the sample proportion from these registered voters is:

representing the sample proportion of people who voted in the election

They info that they have is that the true proportion before is and that represent a value related to the population.

So on this case the 0.72 represent a statistic since represent the sample and the 0.52 is a value who represent the population for this case is a parameter.

So the correct option is:

c) 72% is a statistic and 56% is a parameter.

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

hope this < 3