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Calculating Probability with Replacement

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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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Solution Preview

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.
Answer:
(3/7) x (3/7) x (3/7) = ...

$2.19
See Also This Related BrainMass Solution

Calculating Probability With or Without Replacement

Two cards are drawn from single deck of 52 cards one after the other.

- Find the probability of selecting a king from the first card.

- If the first card is king and the card is not replaced, what is the probability of selecting a king from the second card?

- Find the probability of selecting a king from the first card and a queen from the second card without replacing the first card.

- Find the probability of selecting a jack from the first card and queen from the second card with replacement.

- Find the probability of selecting 6 or 7 in the first draw and 8 or 9 in the second draw without replacement.

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