Suppose that 4 squash instead of 2 are used to guess the population mean weight of 5 squash. The possibilities and corresponding sampling distribution are given below. Weights Sample mean Probability Sample A, B, C, D 5, 6, 7, 9 6.75 1/5 B, C, D, E 6, 7, 9, 13 8.75- 1/5 A, B, D, E 5, 6, 9, 13 8.25 1/5 A, B, C, E 5, 6, 7, 13 7.75 1/5 A, C, D, E 5, 7, 9, 13 8.5 1/5 T 6.75 8.75 8.25 7.75 8.5 P(x) 1/5 1/5 1/5 1/5 1/5