3. An experiment was conducted wherein three balls were drawn at random from a barrel containing two blue balls, three red balls, and five green balls. a) Find the mean and variance of the probability distribution of the number of green balls chosen. b) What is the probability that all the balls will have the same color?

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3. An experiment was conducted wherein three balls were drawn at random from a
barrel containing two blue balls, three red balls, and five green balls.
a) Find the mean and variance of the probability distribution of the number of
green balls chosen.
b) What is the probability that all the balls will have the same color?
Transcribed Image Text:3. An experiment was conducted wherein three balls were drawn at random from a barrel containing two blue balls, three red balls, and five green balls. a) Find the mean and variance of the probability distribution of the number of green balls chosen. b) What is the probability that all the balls will have the same color?
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