Question 127620: Please help me solve!
Assume that a hat contains four bills: a $1 bill, $5 bill, a $10 bill, and a $20 bill. Two bills are to be selected at random with replacement. Construct a sample space and find the probability that
26. both bills are $1 bills if the first selected is a $1 bill.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Assume that a hat contains four bills: a $1 bill, $5 bill, a $10 bill, and a $20 bill. Two bills are to be selected at random with replacement. Construct a sample space and find the probability that
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(1,5),(1,10),(1,20),(5,1),(5,10),(5,20),(10,1),(10,5),(10,20),(20,1),
(20,5),(20,10)
(1,1),(5,5),(10,10),(20,20)
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26. both bills are $1 bills if the first selected is a $1 bill.
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Cheers,
Stan H.
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