Asked Aug 28, 2019

A their steals an ATM card and must randomly guess the correct pin code that consists of four digits (each through 0 through 9) that must be entered in the correct order. Repetition of digits is allowed. What is the probability of a correct guess on the first try? 


Expert Answer

Step 1

Number of possible outcome:

Every single digit can take values from 0 to 9. Thus, there are 10 possible digits for every single digit.

The ATM card consists of four digits.

Hence, the...

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