Posted by **tina** on Sunday, January 9, 2011 at 9:35pm.

a pizza store offers 15 different toppings on its pizzas.

what is the probability that 4 randomly selected toppings will include salami and green pepper?

- probability -
**Marth**, Sunday, January 9, 2011 at 10:45pm
There are 15 choose 4 ways to choose 4 toppings. There are 15 choose 2 ways to choose salami, green pepper, and 2 other toppings.

P{salami and green pepper) = C(15, 2) / C(15,4).

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