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A bank lets its constomers choose, personalidentification numbey (PIN)comprising of 2 character that can beAlpha numeric What is the probability of someone correctlly guessing a bank Customer's PN in the
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5 votes
A bank lets its constomers

choose,
personalidentification numbey
(PIN)comprising of 2 character that can
beAlpha numeric
What is the probability of someone
correctlly guessing a bank Customer's PN
in the first
attempt if no repeats are allowed

User Gkalpak
by
4.1k points

1 Answer

6 votes

Answer:

1/1260

Step-by-step explanation:

Since ther PIN consists of 2 characters with one being an alphabet while the other is a letter;

There are 26 alphabets and 10 possible digits. Thus;

Total characters = 36 characters.

Probability of someone correctlly guessing a bank Customer's PIN in the first attempt if no repeats are allowed is; 1/(36C1 * 35C1) = 1/1260

User JayKandari
by
4.0k points
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