Riss9704 Riss9704

14-07-2017
Mathematics

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A jar of coins contains 8 pennies, 5 nickels, 12 dimes, 7 quarters. you choose a coin at random, do not replace it, and then choose another coin. what is probability of choosing a dime first and quarter second

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konrad509 konrad509

14-07-2017

[tex]|\Omega|=32\cdot31=992\\ |A|=12\cdot7=84\\\\ P(A)=\dfrac{84}{992}=\dfrac{21}{248}\approx8.5\%[/tex]

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