# Exam1A - STAT 408 Spring 2009 Version A Name AD1 34 AD2 45...

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STAT 408 Spring 2009 Name _________________________ AD1 AD2 AD3 Version A 3 – 4 4 – 5 2 – 3 Exam 1 Please circle your discussion section. Be sure to show all your work; your partial credit might depend on it. No credit will be given without supporting work. The exam is closed book and closed notes. You are allowed to use a calculator and one 8½" x 11" sheet with notes on it. Page 1 2 3 4 5 6 Total Possible 10 11 9 11 10 9 60 Earned

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Page 1 of 6 1. The population of Lilliput is divided into Little-Endians and Big-Endians based on which end of a boiled egg they believe should be opened. Suppose that 60% of Lilliputians are Little-Endians, and 40 % are Big-Endians. Suppose also that 16% of Little-Endians and 26% of Big-Endians have blue eyes. a) (4) What proportion of Lilliput population have blue eyes? Answer: __________. b) (3) You meet a Lilliputian with blue eyes. What is the probability that he is a Little-Endian? Answer: __________. c) (3) The first democratically elected Lilliputian president is a Little-Endian with blue eyes. His first day in office he proposed a tax break for Lilliputians who are
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Exam1A - STAT 408 Spring 2009 Version A Name AD1 34 AD2 45...

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