Posted by **ashley** on Thursday, January 13, 2011 at 3:16pm.

1. Suppose the number of students in line during office hours:

# of Students (X) Probability P(X)

0 0.40

1 0.30

2 ????

3 0.10

a. If you knew that the number of students in line was between 0 and 3, what is the probability that will be 2 students in line when you arrive at the office

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