According to U.S. Census data, 71.6% of Americans are age 21 and older. The provided figure shows possible sampling distributions for the proportion of a sample age 21 and older, for samples of size n=50,n=125, and n=250. Match the sample sizes ( n=50,n=125, and n=250) to their sampling distribution. 10. Sample A: n= 11. Sample B: n= 12. Sample C: n= 13. (3) Briefly explain the distinction between a parameter and a statistic..