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0
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Help 10,11

NotSoSmart  Apr 16, 2018
 #1
avatar+86931 
+1

10.  P (Brown or Dress)  =  P(Brown) + P(Dress)  - P (Brown and Dress) 

                                       =   (13/21)  + (10/21)  - ( 7/21)

                                      =    16/21 

 

11.  P ( More than 1 hour of TV  l 6th period )  =  13/23  = .565

 

 

 

cool cool cool

CPhill  Apr 16, 2018

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