stephy2021 stephy2021

24-09-2021
Mathematics

contestada

DOES ANYBODY KNOW THIS???
A thief steals an ATM card and must randomly guess the correct 3-digit pin code from a 7-key keypad. Repetition of digits is allowed.
The number of possible codes is ?
The probability that the correct code is given on the first try is ?

Respuesta :

chloebarber0229 chloebarber0229

24-09-2021

hmm

3^7 = 6,561

1 in 6,561 chances

OR

7^3 = 2,401

1 in 2,401

Answer Link

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