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Should a user be allowed to enter null values for the primary key?
Ratio
A comparative statistic that shows the relative size of two numbers or quantities to each other, expressed as "x to y" or x:y.
Ratio
A mathematical relationship between two numbers indicating how many times the first number contains the second.
Interval
A range of values between two points, often used in reference to scales in measurements.
True Zero Point
In measurement scales, a true zero point indicates the absence of the quantity being measured, allowing for ratios to be meaningfully calculated.
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