124. There are 11 Boys in a family . Youngest child is a boy . What is the probability of all are boys?

• It is already given that there are 11 boys in a family .
  youngest child is also boy.
  If there are only 11 members in family, then
  the probability of all are boys = 100%
  
  If u consider parents ( father and mother) also, then there are 12 male members
  and one female members, then
  probability/ratio of male persons in that family = 12/13
  
  Pls check the data and question if you mean something different.
• 11 years agoHelpfull: Yes(20) No(5)
• as all 11 are boys
  so probability is 100%
• 11 years agoHelpfull: Yes(5) No(7)
• 1 since there are only boys
  
• 11 years agoHelpfull: Yes(3) No(1)
• Probability of one boy is =1/2.
  
  as one child is boy from 11 child . so all remaining child will be boy
  
  = 1/2*1/2............10 times=1/1024
• 11 years agoHelpfull: Yes(3) No(1)
• 1
  since all r boys as in qustions
• 11 years agoHelpfull: Yes(1) No(0)
• as all 11 are boys
  so probability is 100%
• 11 years agoHelpfull: Yes(1) No(1)
• probability is 100% because there are all boys in that family
  
• 11 years agoHelpfull: Yes(0) No(1)
• 0.1 ie 1/10 bcs there are 11 members r there in that 1 they told ...remain 10 members prob is 1/10.....
  
• 11 years agoHelpfull: Yes(0) No(6)
• i think question is wrong actually question is 11 children in family then what is probability of all are boys
• 11 years agoHelpfull: Yes(0) No(1)