# How to derive the chances of getting the Jackpot in NY Mega Millions with the given answer?

How to derive the chances of getting the Jackpot in NY Mega Millions with the given answer? please check your answer!

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I heard on Facebook that two people won the same big lottery with the same winning number. Is this that lottery? Does anyone know if this is true? – Stefan Smith Dec 19 '13 at 2:37

## 1 Answer

You choose 5 numbers from within the set {$1,2,...,75$}, in $75C5=17259390$ ("75 choose 5") ways. Then you multiply by 15 , because you can choose the additional ball in 15 ways. Then you have $17259390)(15)=258890850$

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