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A group of 20 people consists of 10 married couples. Assume each married couple consists of one man and one woman. These 20 people are

A group of 20 people consists of 10 married couples. Assume each married couple consists of one man and one woman. These 20 people are then randomly arranged into 10 pairs of two each, disregarding who they are married to. What is the variance of the number of married couples that are paired together?

A.0.58

B.0.61

C.0.47

D.0.53

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