Please list your answers to part a, b, c, and d. Suppose you try to conduct a presidential approval poll of 5,000 likely U.S. voters. You know that 25% of the voters are registered as Republican, 31% are registered as Democrat, and 42% are registered as Independent. If you are going to construct a representative sample of this population, approximately how many of the likely voters in the sample should be: a. Republican b. Democrat c. Independent d. Notice the sum of the percents is not 100. What could account for this