Question 188341
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There are 21 white pieces out of 42 total pieces, so the probability that the first one you pick will be white is


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{21}{42}]


Given that you pick a white piece the first time, there are then 20 white pieces left out of 41 total pieces, so:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{20}{41}]


and so on...


Your total probability for 5 white pieces is then:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{21}{42} \times \frac{20}{41} \times \frac{19}{40} \times \frac{18}{39} \times \frac{17}{38}]



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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