Which statement best describes the relationship between histogram axes?

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Multiple Choice

Which statement best describes the relationship between histogram axes?

Explanation:
In a histogram of a radiographic image, the vertical axis represents how many pixels have a given brightness value. The horizontal axis lists the signal intensity (pixel value) from dark to bright. So the frequency of each pixel value—the count of pixels at each gray level—appears on the Y-axis, making that statement the best description of how the axes relate. The histogram does not plot exposure time.

In a histogram of a radiographic image, the vertical axis represents how many pixels have a given brightness value. The horizontal axis lists the signal intensity (pixel value) from dark to bright. So the frequency of each pixel value—the count of pixels at each gray level—appears on the Y-axis, making that statement the best description of how the axes relate. The histogram does not plot exposure time.

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