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A sample of 20 families reported how many children they have. Answer the following questions based on the summary table below. Number of children Number

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A sample of 20 families reported how many children they have. Answer the following questions based on the summary table below. Number of children Number of families 0 3 1 6 2 7 3 3 4 1 What is the range? (2 points) b) What is the variance? (4 points) c) What is the standard deviation? (2 points)

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