When looking for a specific object of interest, on average 25% of a sequential access file will have to be searched in order to find that object.

Name: When looking for a specific object of interest, on average 25% of a sequential access file will have to be searched in order to find that object.
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In a sequential access file, on average, 50% of the file will need to be searched to find a specific object, assuming the object is equally likely to be anywhere in the file.

When Looking for a Specific Object of Interest, on Average