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#1 2008-11-12 13:24:50
- teef
- Guest
Probability
i need help:
a fruit basket contains 5 red apples and 3 green apples. without looking you randomly select 2 apples. what is the probability that you will not select 2 green apples?
i need to use nCr 's
#2 2008-11-12 13:50:21
- Daniel123
- Member
- Registered: 2007-05-23
- Posts: 663
Re: Probability
The probability that you will not select 2 green apples is equal to (1 - the probability that you will select 2 green apples).
The probability that you will select two green apples is 3/8 x 2/7.
EDIT: I'm assuming this is without replacement.
Last edited by Daniel123 (2008-11-12 13:50:46)
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#3 2008-11-12 13:53:47
- teef
- Guest
Re: Probability
thanks !
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