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A bag contains 5 red balls and 6 green balls. You plan to select 2 balls at random. Determine the probability of selecting 2 green balls.
The problem is to be done without replacement. Use combinations to determine the probability

Sagot :

Step-by-step explanation:

first pick has probability

[tex] \frac{6}{11} [/tex]

second pick has probability

[tex] \frac{5}{10} [/tex]

combined probability is

[tex] \frac{30}{110} = \frac{3}{11} [/tex]

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