An Urn Contains 7 Blue and 3 Yellow Chips

question 86

Essay

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.

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