SOLUTION: two balls are drawn at random without replacement from a box containing 6 red balls, 4 white balls and 5 blue balls. determine the following probabilities; 1. both balls drawn ar

Question 862784: two balls are drawn at random without replacement from a box containing 6 red balls, 4 white balls and 5 blue balls.
determine the following probabilities;
1. both balls drawn are red
2. none of the ball drawn is blue
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

 balls: 6R, 4W and 5B

two balls are drawn at random without replacement 

P(2 red)= 

P(no blue)= 



mean and variance of the distribution of the number of red balls drawn ?

mean= 

Sd =  = 1.8974 

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