SOLUTION: sarah cannot completely remember her four digit atm pin number,she does remember first two digit and she knows that each of the last two digits greater than 5,th atm will allow her
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-> SOLUTION: sarah cannot completely remember her four digit atm pin number,she does remember first two digit and she knows that each of the last two digits greater than 5,th atm will allow her
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Question 856167: sarah cannot completely remember her four digit atm pin number,she does remember first two digit and she knows that each of the last two digits greater than 5,th atm will allow her three tries before it blocks further access.if she andomly guesses the last two digits,what is the probability that she will get access to her account?
