Task: 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.