SOLUTION: 6. If we randomly select 2 diskettes, one after the other , from a box containing a diskettes of which 3 are unformatted, a. What is the probability that both of them will be unf

Question 635123: 6. If we randomly select 2 diskettes, one after the other , from a box containing a diskettes of which 3 are unformatted,
a. What is the probability that both of them will be unformatted?
b. What is the probability that both of them will be formatted?

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

randomly select 2 diskettes, one after the other , 

from a box containing diskettes of which 3 are unformatted,

Assumming no replacement

P(both unformatted) = 

P(both formatted) =  

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