The Humane Society likes to keep track of the percent of people who are dog and cat owners . Some people own only dogs some only cats , and some own both . The Humane Society reports that 13 % of households own both dogs and cats , 33 % ow cats, 39% own dogs, and 41% don't own either.
Is ownership of dogs vs. cats independente Justify your response with appropriate representations of the data and numerical calculations.