Math Question: What is the sum of the mixed numbers 3 2/5 and 4 3/10 when expressed as improper fractions? Additionally, factor the resulting numerator and denominator, and list all the prime factors of each.
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What is the relationship between the lengths of the major and minor axes in an ellipse?
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What is the standard deviation of the following data set: 2, 6, 4, 8, 5, 10, 12?