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The coefficient of linear expansion of ordinary glass is three times that of Pyrex glass.An ordinary glass rod and a Pyrex glass rod of equal lengths at room temperature are dropped into boiling water.The change in length of the ordinary glass rod will be 3 times the change in length of the Pyrex glass rod.
Process
A series of actions or steps taken to achieve a particular end.
Chance Variation
Chance Variation refers to the unpredictability in data or outcomes that arises from random processes inherent in statistical experiments.
Randomly Selected
The process of choosing individuals or items in such a way that each member of a population has an equal chance of being included in the sample.
Normal Fluctuations
Variations in data or statistical measurements that are considered normal or typical within a specific context.
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