31% of workers in the US are college graduates. You randomly select 50 workers and ask each if they graduated from college. What is the probability that at most 20 workers are college graduate.

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read

Hello, i need compare km^2 and km. what's difference in this?

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?