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If the average income (in thousand dollars) in a certain city is 30 with a standard deviation of 10. What can we conclude from this

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If the average income (in thousand dollars) in a certain city is 30 with a standard deviation of 10. What can we conclude from this information? O Approximately 99.7% of the incomes are between 10 and 50. Approximately 95% of the incomes are between 10 and 50. At least 75% of the incomes are between 10 and 50. Approximately 68% of the incomes are between 20 and 40. At least 95% of the incomes are between 10 and 50

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