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In the image below, the data frame on lines 1 through 4 is named StDf. State and Capital are both factors. Which statement returns the results shown on lines 6 and 7?![Image](https://i.ibb.co/8DL1HCV/Captura-de-pantalla-2020-07-14-a-las-18-33-34.png' >

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In the image below, the data frame on lines 1 through 4 is named StDf. State and Capital are both factors. Which statement returns the results shown on lines 6 and 7?<br>![Image](https://i.ibb.co/8DL1HCV/Captura-de-pantalla-2020-07-14-a-las-18-33-34.png' >






 
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