The following is a sample data collected from a large population, find the following: The sample data is: (3, 2, 1,5, 4, 2, 6, 1, 2, 4, 5, 4) Find the value for each of the following: a. The estimated Population mean b. The estimated population Variance C. The population proportion estimate for the items with values more than 4. Write your answers as numbers using two digits separated by commas and followed by one space. Do not add any other words, letters, or comments Example: 10.09, 3.00, 1.34