1. 

   Molly Ton up Member

   Hi all,
   
   I really cant work out where they have got the parameter p from in part iii of this question. Please could someone explain? I understand the first two parts

    

   Molly, Dec 7, 2022

   #1
2. 

   Andrea Goude ActEd Tutor Staff Member

   Hi Molly is that Q9iii? p_hat is 38/200, 38 containing viruses out of the 200 messages

    

   Andrea Goude, Dec 9, 2022

   #2

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