Question 204215
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You have the correct answer, but either your reasoning is a little skewed or I'm having trouble understanding what you are saying.  Look at it my way and see if it makes sense to you:


The first person in line can be any one of 4 people, so 4 ways to pick the first person.  Once you have chosen the first person, the gender of the second person is fixed, and there are only 2 ways to pick the second person.  There is then only 1 possibility left for the third person, and only 1 possibility for the fourth person.  So:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4\ \times\ 2\ \times\ 1\ \times\ 1\ =\ 8]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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