Problem 1039

Daily Math Challenge - November 22, 2023



A survey was conducted of 700 people who drink coffee in the morning at work.  Each person was asked where their first cup of coffee was brewed each morning:  at home, at the office, national coffee shop, or locally owned coffee shop.  Survey results show that 500 people said at home, 100 at the office, 60 at a national coffee shop, and 40 at a locally owed coffee shop.  What is the probability that the first 4 people surveyed all brewed their first cup at home?

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