3 years ago

Can someone help me out? :P (serious answers only)

Mathematics

1 answer:

cluponka [151]3 years ago

6 0

188.93 should be the answer

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An urn contains 6 red marbles and 4 black marbles. Two marbles are randomly drawn (one by one) from the urn without replacement.

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Answer: The required probability is $\dfrac{2}{15}.$

Step-by-step explanation: Given that an urn contains 6 red marbles and 4 black marbles. Two marbles are randomly drawn one by one from the urn without replacement.

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Let E and F denote the events of two marbles one by one without replacement and let S and S' denote the corresponding sample spaces.

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$n(E)=^4C_1=4,\\\\n(F)=^3C_1=3,\\\\n(S)=^{10}C_1=10,\\\\n(S')=^9C_1=9.$

Therefore, the probability that both marbles are red is given by

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Thus, the required probability is $\dfrac{2}{15}.$

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Lilly bought stock at $83.60. The next day, the price increased by $15.35. Then this price changed by $-2.15.Wgat was the final

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