Suppose that we have a bucket of 30 red balls and 70 blue balls. if we pick 20 balls out of the bucket, what is the probability of getting exactly k red balls (assuming 0 ≤ k ≤ 20) if the sampling is done with replacement?

Arectangle has a base of 5 inches and a height of 7 inches. if the dimensions are cut in half, what will happen to the area of the rectangle? it will be half of the original size. it will be the same as the original size. it will be four times the original size. it will be one-fourth the original size.