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?
Answer
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 closer the sample proportion of red marbles will be to the true proportion of red marbles in the jar.
D
The smaller the sample size of marbles, the closer the sample proportion or red marbles will be to the true proportion of red marbles in the jar.