There are 7 children and the youngest child is a boy. What is the probability that all of them are boys is 1 in

• the probability of finding either boy or girl is 1/2. There are 6 persons, the probability that the remaining 6 persons become a boy is : 1/2*1/2*1/2*1/2*1/2*1/2.
• 13 years agoHelpfull: Yes(14) No(0)
• probability of getting all them are boys in 1 in=1/2^6
• 13 years agoHelpfull: Yes(3) No(0)
• prob.of getting boys or girl is always 1/2.So,if there are 6 person then the prob will be 1/2^6
  
  
• 13 years agoHelpfull: Yes(1) No(0)
• 7 children are there.1 is a boy
  Probability for a boy is 1/2.
  prob to make 2 children boys is (1/2)*(1/2)=1/(2^2).
  Therefore prob that al of the 6 to be boys is
  1/(2^6)
• 13 years agoHelpfull: Yes(1) No(0)
• there are totally 7 children, no 1. can be either a boy or girl so probability is 1/2, similarly for all six children. therefore answer is 1/2^7
• 13 years agoHelpfull: Yes(0) No(9)