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exam1-key

# exam1-key - IE 230 Seat Name(neatness 1 point < KEY >...

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IE 230 Seat # ________ Name (neatness, 1 point) ___ < KEY > ___ Closed book and notes. 60 minutes. Cover page and four pages of exam. No calculators. This test covers event probability, Chapter 2 of Montgomery and Runger, fourth edition. Score ___________________________ Exam #1, September 25, 2008 Schmeiser

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Name _______________________ Closed book and notes. 60 minutes. 1. True or false. (3 points each) (a) T F If A is an event, then A and A are mutually exclusive. (b) T F If A is an event, then A and A partition the sample space. (c) T F If P( A | B ) = 0.5, P( B ) = 0.5, and P( A ) = 0.7, then B and A are independent. (d) T F If A and B are independent events, then P( B | A ) = P( A ). (e) T F If denotes the empty set, then P( ) = 0. (f) T F If A and B are events, then P( A | B ) P( A ). (g) T F If A is an event, then P( A | A A ) = 0. (h) T F If A and B are positive-probability events, then P( A | B ) P( B ) = P( B | A ) P( A ). (i) T F If A and B are events and A is a subset of B , then P( B ) P( A ). 2. Recall: A 52-card deck has four suits (spades, hearts, diamonds, and clubs) and thirteen values (Ace, 2, 3,. ..,10, Jack, Queen, and King). Spades and clubs are black; hearts and diamonds are red. Consider the experiment of choosing ten cards without replacement. For draw i = 1, 2,. .., 10, let Q i denote that a queen is chosen, let K i denote that a king is chosen, and let A i denote that an ace is chosen. (a) (3 points) T
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exam1-key - IE 230 Seat Name(neatness 1 point < KEY >...

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