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/sci/ - Science & Math

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>> No.10468326 [View]
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10468326

Plz help me anons. Im really bad at math, but have to take a statistical course. Its been a week since class and im doing my take home quiz. please help me with this question
"A pizza shop offers nine toppings. No topping is used more than once. What is the probability that the toppings on a three-topping pizza are pepperoni, onions and mushrooms." I got 19% because 1 divided by 504 (9x8x7) then multiplied my answer by 100. Is that correct? Im doing combinations in permutations.



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