04spex2an - R \{ } ) . 4. (a) F D ( d ) = for d...

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Answers to 2004 Spring Semester Sample Second Exam M´arton Bal´azs 1. (a) e - 3 , (b) e - 3 2 , (c) ln 2 3 . 2. 50 people. 3. f Y ( y ) = b λ e - λy for y > 0 , 0 for y 0 , hence Y is exponentially distributed with parameter λ . 4. 1 4 . Answers to 2004 Spring Semester Second Exam 1. ln 10. 2. At least 661 times. 3. f Y ( y ) = 1 2 π · e - y 2 / 3 2 · 1 3 y 2 / 3 ( y
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Unformatted text preview: R \{ } ) . 4. (a) F D ( d ) = for d < , 2 d-d 2 for 0 d 1 , 1 for d > 1 , (b) f D ( d ) = for d < , 2-2 d for 0 d 1 , for d > 1 , (c) E D = 1 3 ....
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