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Tree Diagrams

Tree Diagrams. Probability Trees. A family has three children. Let’s assume each child is equally likely to be a boy or a girl. a) Draw a probability tree to show all possible outcomes. b) What is the probability of two of the three children being girls?. BBB. B. ½. BRANCHES.

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Tree Diagrams

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  1. Tree Diagrams

  2. Probability Trees A family has three children. Let’s assume each child is equally likely to be a boy or a girl. a) Draw a probability tree to show all possible outcomes. b) What is the probability of two of the three children being girls? BBB B ½ BRANCHES ADD down the tree Multiply along a branch BBG B G ½ ½ BGB B ½ B G ½ ½ ½ G BGG GBB ½ B B ½ ½ ½ G G GBG GGB B ½ ½ G 1st child G GGG ½ 2nd child 3rd child

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