In an activity, students are pulling marbles from a large jar containing blue and red marbles. In their sample, students will calculate the proportion of red marbles. Which of the following is a correct statement about sampling
variability?
A- The larger the sample size of marbles, the larger the sampling variability
B- The smaller the sample size of marbles, the smaller the sampling variability
C- The larger the sample size of marbles, the closet the sample proportion of red marbles will be the true proportion of red marbles in the jar
D- The smaller the sample size of marbles, the closet the sample proportion or red marbles will be to the true proportion of red marbles in the jar