Child Boy

Child Boy
What is the probability that this womans second child is also a boy?

a woman is chosen at random among all women who have 2 children. she is asked if she has at least one son, and answers yes. what is the probability that her other child is also a boy?
assume that every pregnancy has a 50-50 chance of resulting in a boy or girl.

please explain your reasoning

50/50

Girl has XX
Boy has XY

the Y determines if it will be a boy.

Share and Enjoy:
  • Print
  • Digg
  • Sphinn
  • del.icio.us
  • Facebook
  • Mixx
  • Google Bookmarks
  • Blogplay

Post a Comment

Your email is never shared. Required fields are marked *

*
*
*