What is defined as the mathematical ratio of the number of bits required to represent data before compression to the number of bits required after compression?

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A Data Density Index
B Compression Ratio
C Bandwidth Multiplier
D Entropy Threshold

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Answer: B. Compression Ratio

Answer: B) Compression Ratio
Explanation: The compression ratio determines efficiency. For example, if an uncompressed raw image takes 65,536 bytes and its compressed equivalent takes 16,384 bytes, the compression ratio is 4:1 (65536 / 16384 = 4).

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What is defined as the mathematical ratio of the number of bits required to represent data before compression to the number of bits required after compression?

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