## Exam Information

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## Sample Document Text

MATH 111 EXAM #2A
MARCH 31, 2004
INSTRUCTIONS:
1. Do all your work in the exam booklet provided.
2. SHOW YOUR WORK and provide intermediate steps for partial credit.
3. At the end of the exam, write out and sign the University Honor Pledge
in the space provided on the exam booklet cover.
[10] 1. On any given day, a vending machine has a .15 probability of having
what you want. If you stop by the vending machine each day (Monday
through Friday) find the probability of the vending machine having what
you want on Monday and Tuesday, but not for the rest of the week.
[20] 2. An athletic store has a rack with 80 tank tops of which 25 are black, 15
are blue, 20 are red and 20 are white. You select 4 to buy.
(a) Find the number of ways you can select 4.
(b) What is the probability of selecting 2 black and 2 red?
(c) What is the probability of selecting all 4 either all red or all blue?
(d) What is the probability of selecting at most 2 white?
[15] 3. Given peA) =.3, PCB) =.5 and peA...

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