Question

what is 'loss of information' in a classified data ?
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Answer 1

Answer:

loss of information in classified data error condition in information systems in which information is destroyed by failures or neglect in storage, transmission, or processing. ... Data loss is distinguished from data unavailability, which may arise from a network outage.

Answer 2

Answer:

The classified data summarises the raw data making it concise and comprehensible, it does not show the details that are found in raw data. Once the data are grouped into classes, an individual observation has no significance in further statistical calculations. Further, the statistical calculations are based on the values of the class marks, ignoring the exact observations of the data leading to the problem of loss of information.