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english Probabilistically speaking, what is the expected number of children a couple should have in order to get both a boy AND a girl?
francais Combien d’enfants un couple devrait avoir pour faire en sorte d’obtenir, avec un taux de probabilité élevé, une fille et un garcon?
italiano Quanti pargoli dovrebbe avere una coppia per far sì di ottenere, con un alto grado di probabilità, una femmina e un maschio?

Sunday puzzle 47

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Text and images by Gianni A. Sarcone 
Labels: SUNDAY PUZZLE, puzzles to solve, recreational mathematics, probability
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