SOLUTION: An Easter basket of 25 plastic eggs has ten eggs that have money inside. If 7 eggs are selected at random from the basket, determine the probability that at least one of the seven

Question 962200: An Easter basket of 25 plastic eggs has ten eggs that have money inside. If 7 eggs are selected at random from the basket, determine the probability that at least one of the seven eggs selected has money inside it?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
An Easter basket of 25 plastic eggs has ten eggs that have money inside. If 7 eggs are selected at random from the basket, determine the probability that at least one of the seven eggs selected has money inside it?
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Rule:: P(at least one) = 1 - P(none)
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Binomial Problem with n = 7 and p(money)= 10/25; p(no money) = 3/5
Your Problem::
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P(x >= 1) = 1 - P(none of 7 selected has money)
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= 1 - (3/5)^7
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= 1 - 0.02799
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= 0.9720
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Cheers,
Stan H.
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