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

X ~ Binomial(n = 37, p = 0.9). Calculate Pr(X = 24).

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