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there are 12 state quarters and 5 regular quarters in a bag. Rees randomly picks up a quarter and then puts it back in the jar and randomly picks another without looking. If the first quarter was a state quarter, what is the probability that the second quarter will be a regular quarter? write as a simplified fraction.

Answer :

There will be 17 quarters in the bag (12 which are state and 5 which are regular). The probability of the state quarters picked on the first try would be 12/17 while the probability of the second will be 5/17. If Rees put the state quarter back in the jar, then probability that the second quarter will be a regular quarter will remain 5/17. 

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