1. a) X P(X|Y=10) X P(X|Y=10)
0 1/6 0
10 5/6 50/6
E(X|Y=10) = 50/6
b)
c) No,
2. a)
b)
3.
4. a)
b)
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Old Exam 2 with Solutions - Probability and Statistics | ECON 209, Exams of Probability and Statistics
Material Type: Exam; Class: Probability and Statistics; Subject: Economics; University: Vassar College; Term: Fall 2002;
Typology: Exams
Pre 2010
1 / 2
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- a) X P(X|Y=10) X P(X|Y=10) 0 1/6 0 10 5/6 50/
E(X|Y=10) = 50/
b)
c) No,
- a)
b)
- a)
b)
The mean of the sample of size 100 is the more efficient extimator.