3.) A population has four members (called A, B, C, and D). You would like to select a random sample of n = 2 , which you decide to do in the following way: Flip a coin; if it is heads, the sample will be items A and B; if it is tails, the sample will be items C and D. Although this is a random sample, it is not a simple random sample. Explain why. 4.) Explain how to generate a simple random sample of 20 employees out of the 85 total employees who are working at a candy bar factory