Answer with explain

13.A particular family consists of 5 individuals. The ages of the family members are 2, 4, 6, 30, and 32. (a) [2 points] List all 10 possible SRSs of size n = 2, calculate the mean age for each sample, and display the sampling distribution of the sample mean on a dotplot. (b) [1 point] Is the sample mean an unbiased estimator of the population mean? Justify your answer. (c) [1 point] If we increase the sample size, does the variability of the sampling distribution change? Explain