In a recent presidential election, 60% of the voters went Denacicratic, 40% went Republican. If Gallup took a sample of 5 voters at random, find
(a) The probability that the sample would be all Democrats.
(b) The probability that the sample would correctly forecast the election winner, i.e., that a majority of the sample would be Democratic.
(c) Id what way is a sample of 5 better than a sample of I?