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You cannot remember your 5-digit bike-lock combination. What is the probability that you guess the combination correctly? (Enter your probability as a fraction.)

 Oct 18, 2018
 #1
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+1

If the combination  can't start with  0

 

1 / [ 9 * 10^4 ]   =   1 / 90000

 

If  it can start with 0

 

1 / 10^5     =   1 / 100,000

 

 

cool cool cool

 Oct 18, 2018

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