Test 1 VerB Solutions

# Test 1 VerB Solutions - STAT 230 Test#1 3:30 4:20 pm UW...

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STAT 230 Test # 1S e p t 2 5 , 2008 3 : 30 4 : 20 pm mark ____/ 19 B Name : Student I . D : UW computer userid : Circle your section and time slot : 1 . McLeish ( 12 : 30 ) 2 . McLeish ( 12 : 30 ) 3 . Freire ( 1 : 30 ) ( 2 ) 1 . Indicate true or false : If A and B are mutually exclusive events with P A 0, P B 0, then P A B P A P B . True False 4 2 8 2 . If A and B are events with P A 0.25, P B 0.6 and P A B 0.1 then, (a) P B _1 0.6 0.4 (b) P A B P A P B P AB 0.25 0.1 0.55 (c) P A | B P AB P B 0.1 0.4 (d) A and B are independent True False 3 . Four different letters are distributed at random into 5 mailboxes by choosing one of the five mailboxes at random for each of the letters. ( 3 ) a . Give a possible sample space for this problem. How many points are in the sample space?

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## This note was uploaded on 10/21/2010 for the course STAT 230 taught by Professor Various during the Fall '06 term at Waterloo.

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Test 1 VerB Solutions - STAT 230 Test#1 3:30 4:20 pm UW...

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