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AP Computer Science Principles/Big Idea 2: Data
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Lossless Compression and Data Redundancy
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A student compressed three different files of the same size using the same lossless compression algorithm with these results: File 1: 80% reduction, File 2: 20% reduction, File 3: 5% reduction. What can be concluded?

A

Larger files always compress better than smaller ones

B

The algorithm was applied incorrectly to Files 2 and 3

C

File 1 likely contained the most redundant data

D

File 3 was already in a compressed format

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