SOLUTION: A person chooses a 3-letter password, he can use a letter more than once. What is the probability that someone else can guess his password by randomly picking 3 letters.

Question 757124: A person chooses a 3-letter password, he can use a letter more than once. What is the probability that someone else can guess his password by randomly picking 3 letters.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A person chooses a 3-letter password, he can use a letter more than once. What is the probability that someone else can guess his password by randomly picking 3 letters.
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# of ways to succeed: 1
# of possible passwords: 26^3
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P(guess correctly) = 1/(26^3) = 0.000056896
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Cheers,
Stan H.
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