This question: 1 Submit test KS point(s) possible Three randomly selected children are surveyed. The ages of the children are 2, 7, and 12. Assume that samples of size n = 2 are randomly selected with replacement from the population of 2, 7, and 12. Listed below are the nine different samples. Complete parts (a) through (d). 2,2 2,7 2,12 7,2 7,7 7,12 12,2 12,7 12,12 0 a. For the population, find the proportion of even numbers. The proportion is. (Round to three decimal places as needed.) b. Find the proportion of even numbers of each of the nine samples, then summarize the sampling distribution of the sample proportion of even numbers in the format of a table representing the probability distribution of the distinct proportion values. Sample Proportion Probability (Type integers or simplified fractions.) c. Find the mean of the sampling distribution of the sample proportion of even numbers. The mean is. (Round to throo darimal nlaras ac noorled )