SOLUTION: Hi,
Cards are drawn at random and with replacement from an ordinary deck of 52 cards until a spade appears.
What is the probability that at least 4 draws are necessary?
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-> SOLUTION: Hi,
Cards are drawn at random and with replacement from an ordinary deck of 52 cards until a spade appears.
What is the probability that at least 4 draws are necessary?
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Question 363614: Hi,
Cards are drawn at random and with replacement from an ordinary deck of 52 cards until a spade appears.
What is the probability that at least 4 draws are necessary?
Thanks!
Regards,
Anita Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! .75^3=.4219 probability of all non spades on 3 consecutive draws with replacement.
1-.4219=.5781 the probability that at least 4 draws are necessary ie. 3 were not enough.
.
Ed
