An urn contains 7 blue and 3 yellow chips. If the drawing of chips is done with replacement, determine the probability of: (a) Drawing three yellow chips. (b) Drawing a blue chip on the first draw and a yellow chip on the second draw. (c) Drawing a blue chip on the second draw given that a yellow chip was drawn on the first draw. (d) Drawing a yellow chip on the second draw given that a blue chip was drawn on the first draw. (e) Drawing a yellow chip on the second draw given that a yellow chip was drawn on the first draw.