Question
A thief steals an ATM card and must randomly guess the correct four digit pin code from a 8 key keypad. Repetition of digits is
A thief steals an ATM card and must randomly guess the correct four digit pin code from a 8 key keypad. Repetition of digits is allowed. What is the probability of a correct guess on the first try?
The number of possible codes is? Type as an integer and fraction.
The probability that the correct code is given on the first try is? Type as an integer and fraction.
Please show your work.
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College Algebra Graphs and Models
Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna
5th edition
321845404, 978-0321791009, 321791002, 978-0321783950, 321783956, 978-0321845405
