web2.0calc
 
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 Help 10 ​

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Help 10

 Jan 3, 2019

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 #1
avatar+129852 
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C(10, 7) (1/2)^7 (1/2)^3   =  .117  =  11.7%  ⇒ "A" seems closest

 

 

cool cool cool

 Jan 4, 2019

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