Question: Do a run - length encoding for a sequence of sequence of grayscale values as follows: 2 0 0 0 white pixels, followed by 1

Do a run-length encoding for a sequence of sequence of grayscale values as follows: 2000 white pixels, followed by 1000 black pixels, followed by 500 gray pixels of medium intensity. What is the best choice for the number of bits to use? Explain your answer and compute the compression rate.

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