Irish Sun: Major boost for Irish parents as Dunnes Stores release Communion collection for boys and girls – prices start from €20 IRISH parents are set for a frenzy as Dunnes Stores has released a beautiful Communion collection for boys and girls – with prices starting from €20. The 2026 range is available in selected stores ... Major boost for Irish parents as Dunnes Stores release Communion collection for boys and girls – prices start from €20 A couple decides to keep having children until they have the same number of boys and girls, and then stop.

Understanding the Context

Assume they never have twins, that the "trials" are independent with probability 1/2 of a boy, and that they are fertile enough to keep producing children indefinitely. Expected girls from one couple$ {}=0.5\cdot1 + 0.25\cdot1 =0.75$ Expected boys from one couple$ {}=0.25\cdot1 + 0.25\cdot2 =0.75$ 1 As I said this works for any reasonable rule that could exist in the real world. An unreasonable rule would be one in which the expected children per couple was infinite. Expected number of ratio of girls vs boys birth - Cross Validated Probability of having 2 girls and probability of having at least one girl Ask Question Asked 8 years, 7 months ago Modified 8 years, 7 months ago Probability of having 2 girls and probability of having at least one girl