IF There are 9 people in a group,then what is the probability of getting ATLEAST 2 persons between any of two persons?

• 3/4
  9C2=36
  7+6+5+4+3+2=27
  p=27/36=3/4
• 9 years agoHelpfull: Yes(14) No(2)
• 7/12
  
  9C2=36
  6+5+4+3+2+1=21
  21/36
  7/12
  
• 9 years agoHelpfull: Yes(13) No(2)
• question should be at least two person among group of 9 people then required sol will be--
  {2^9-(9c0+9c1)}/2^9
  note: al least two we have to taken then only invalid cases are 9c0 and 9c1 so we subtract from total.. total will in the form of 2^x here x is no of persons
  
• 9 years agoHelpfull: Yes(4) No(1)
• 1-8!x2/9!=7/9 ans was dis in option??
• 9 years agoHelpfull: Yes(0) No(4)
• i don't have option.
  
• 9 years agoHelpfull: Yes(0) No(0)
• shrey why its not 7+6+5+4+3+2+1
• 9 years agoHelpfull: Yes(0) No(2)