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A safe has a 4-digit lock code that does not include zero as a digit and no digit is repeated. What is the probability
that the lock code consists of all even digits?
To find the total number of outcomes for this event, find the permutation of things taken 4 at a time
The total number of outcomes is
The total number of favorable outcomes is a permutation of things taken 4 at a time
The probability that the lock code consists of all even digits is out of 3,024

Respuesta :

Answer:To find the total number of outcomes for this event, find the permutation of  

⇒ 9 things taken 4 at a time.

The total number of outcomes is  

⇒ 3,024.

The total number of favorable outcomes is a permutation of  

⇒ 4 things taken 4 at a time.

The probability that the lock code consists of all even digits is  

⇒ 24 out of 3,024.

Answer: 9, 3024, 4, 24

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