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Unformatted text preview: deluxe model, or both? P( W D ) = P( W ) + P( D ) P( W D ) = 0.42 + 0.60 0.30 = 0.72 . OR P( W D ) = P( W D ) + P( W B ) + P( W ' D ) = 0.30 + 0.12 + 0.30 = 0.72 . OR P( W D ) = 1 P( W ' B ) = 1 0.28 = 0.72 . c) (2) If you learn that a randomly selected purchaser has an extended warranty, what is the probability that he/she has a deluxe model? P( D | W ) = 7 5 = = 42 . 30 . ) W ( P ) W D ( P 0.7143 . d) (2) Suppose a randomly selected purchaser does not have an extended warranty. What is the probability that he/she has a basic model? P( B | W ' ) = 29 14 = = 58 . 28 . ) W ( P ) W B ( P ' ' 0.48276 ....
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This note was uploaded on 11/28/2011 for the course STAT 400 taught by Professor Kim during the Spring '08 term at University of Illinois, Urbana Champaign.
- Spring '08