How many hands of 5 playing cards (from a standard deck) contain exactly one pair of cards of equal rank? Use a calculator to compute the numerical value of your answer and explain how you calculated it.

Advanced Engineering Mathematics
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ISBN:9780470458365
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Discrete Mathematics.

Look at the image attached below. The final answer should 1098240 (according to teacher). Need help solving it. 

How many hands of 5 playing cards (from a standard deck) contain exactly one pair of cards of equal rank?
Use a calculator to compute the numerical value of your answer and explain how you calculated it.
Transcribed Image Text:How many hands of 5 playing cards (from a standard deck) contain exactly one pair of cards of equal rank? Use a calculator to compute the numerical value of your answer and explain how you calculated it.
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