Select all the reasons why random samples are preferred over other sampling methods. 1. A random sample is likely to give you a sample that is representative of the population.
2. If you select a random sample, you can determine how many people you want in the sample.
3. A random sample is a fair way to select a sample because each member of the population has an equal chance of being selected
4. A random sample is always the easiest way to select a sample from a population

70 points ! pls 2. given the following two sets of data what is the union of the two sets and what is the intersection of the two sets. set a = {1, 2, 3, 4, 5, 6, 7, 8, 9} set b = {2, 4, 6, 8, 10, 12, 14} 3. given a regular deck of cards. describe a way of pulling cards that would create a dependent event and then one that would create an independent event. 4. what is the probability of drawing a red card and then drawing a spade without replacing the card that was drawn first?