Consider a nite population with five elements labeled A, B, C, D, and E. Ten possible simple random samples of size 2 can be selected. (a) _ist the 10 samples beginning with AB, AC, and so on. (Enter your answers as a comma-separated list.) AB, AC, AD, AE, BC, BD, BE, CD, CE, DE J (b) Jsing simple random sampling, what is the probability that each sample of size 2 is selected? (Enter your probability as a fraction.) 1/10 'I (c) Assume random number 1 corresponds to A, random number 2 corresponds to B, and so on. List the simple random sample (SRS) of size 2 that will be selected by using the random digits 9, O, 3, 7, 3, 5, 4. (Hint 1: a SRS is done without replacement; Hint 2: you will need to skip values that are invalid.) List your answer as a 2 character sequence, i.e., AB. A sample of 5 months of sales data provided the following information. Units Sold 93 (a) Calculate a point estimate for the population mean number of units sold per month. :1 (b) Calculate a point estimate for the population standard deviation. (Round your answer to two decimal places.) :1