90% of the items in the shoe department are on sale. What is the probabilty that exactly 24 of the 37 shoes that Leah buys are on sale?

so (9/10) are on sale and they say (24/37) which could be (48/74)

i need a place to start

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- Jan 11th 2009, 10:11 PMlucifer_xProbability of shoes
90% of the items in the shoe department are on sale. What is the probabilty that exactly 24 of the 37 shoes that Leah buys are on sale?

so (9/10) are on sale and they say (24/37) which could be (48/74)

i need a place to start - Jan 11th 2009, 10:14 PMmr fantastic