Calculate the probabilities of the following birth orders for a couple that has four children. Assume that none of the children are twins. Report each answer as a fraction, reduced to the lowest terms, with no spaces (e.g., 1/4).   2 girls followed by 2 boys:    2 girls followed by 2 boys OR 2 boys followed by 2 girls:

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Q: or =. 2 1 8 寸5 10 1 11 10 10 3 12 11 10 12 四O 9. 8 7 10 10 12 41/5 2/5 3/4 116 1/2

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