Question 180888This question is from textbook
: Two balls are to be selected without replacement from a bag containing one red, one blue, one green, one yellow, and one black ball. How many points are there in the sample space?
This question is from textbook
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Two balls are to be selected without replacement from a bag containing one red, one blue, one green, one yellow, and one black ball. How many points are there in the sample space?
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"Without replacement" is a very important phrase.
It makes the 2nd selection dependent on the 1st.
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1st selection : 5 ways
2nd selection : 4 ways
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# of points in the sample space = 5*4 = 20
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cheers,
Stan H.
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