Communication Theory, Mathematics Part B and the Mathematics and Philosophy and Mathematics and Statistics joint schools; Thursday 14 June 2007, 9.30am–11.15am. The complete four-page source is privately transcribed from original Part B bundle pages 61–64, supplied through the past-papers disclosure. No exact worked-answer advertisement was found in the bounded availability check. Source coding uses the positive-probability source support. Logarithms and information quantities are in base two unless indicated otherwise.
Communication Theory, Mathematics Part B and the corresponding joint schools; Thursday 12 June 2008, 9.30am–11.15am. The complete three-page source and intact cover are preserved in a private editable transcription from original Part B bundle pages 127–129, supplied through the past-papers disclosure. No exact worked-answer advertisement was found in the bounded availability check. All logarithms in these solutions are to base two unless another base is shown.
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