1. Calculate the variance of the following sample data set: X = {5.7.1. 10,5, 2, 12,8} 2. Calculate the standard deviation of the following sample data set: X = {6.1.9, 10,15,8) 3. Calculate the coefficient of variation of the following sample data set: X = {5,6,5, 2, 9, 12, 68) White Realtors, a real estate consulting firm, specializes in advising companies on potential new plant sites. The company uses a job order costing beginning of 2018, managing partner Jane White prepared the following budget for the year Click the icon to view the prepared budget.) (Click the icon to view additional information )