# Answer to Question #23072 in Statistics and Probability for gilbert ramos

Question #23072

suppose a room has two doors. In how many ways can one enter and leave the room?

Expert's answer

There are 2 doors => there are 2 ways of entering the room (n1 = 2)

There are 2 doors => there are 2 ways of leaving the room (n2 = 2)

The total number can be find by multiplying: N = n1*n2 = 4.

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Answer: in 4 ways.

There are 2 doors => there are 2 ways of leaving the room (n2 = 2)

The total number can be find by multiplying: N = n1*n2 = 4.

&

Answer: in 4 ways.

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