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# exam1 - IE 230 Seat(Neatly 1 pt Name Closed book and notes...

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IE 230 Seat # ________ (Neatly, 1 pt) Name _____________________ Closed book and notes. 60 minutes. Cover page and four pages of exam. No calculator. This test covers event probability, Chapter 2 of Montgomery and Runger, fourth edition. Score ___________________________ Exam #1, September 21, 2010 Schmeiser

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IE 230 — Probability & Statistics in Engineering I Name _______________________ Closed book and notes. 60 minutes. 1. True or false. (3 points each) (a) T F If S is the sample space of an experiment, then P( S ) = 0. (b) T F If A and B are events, then P( A B ) P( A ). (c) T F If E 1 , E 2 ,..., E n partition the sample space S , then E 1 E 2 . . . E n = S . (d) T F If P( A | B ) = 0.7, P( B ) = 0.4, and P( A ) = 0.7, then B and A are mutually exclusive. (e) T F If A is an event, then A and A are independent. (f) T F If events A and B are independent, then A and B partition the sample space. (g) T F If P( A | B ) = 0.5, P( B ) = 0.5, and P( A ) = 0.3, then B and A are independent. (h) T F If A and B are independent events, then P( B | A ) = P( B ). (i) T F If the event A is a subset of B , then P( A | B ) P( A ).
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