We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation are 600 and 160, respectively. 
To test the hypothesis that the frequency distribution is normally distributed, what are the degrees of freedom for the chi-square statistic?
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Photographs
are images captured by a camera, used to record or express scenes, events, or portraits.
Photographs
Photographs are images captured by a camera that visually record scenes, people, or objects, preserving moments in time for future reference or enjoyment.
Visual Display
Any visual representation of information, data, or content designed to communicate messages or concepts clearly and effectively.
Infographics
Visual representations of information, data, or knowledge intended to present complex information quickly and clearly.
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