Question 1: Short answer
mediumAI-checkedInformation TheoryCompute the randomness per character of two text sources. A monkey presses one of 44 typewriter keys uniformly at random: that gives bits per character. A typesetter picks one of 2,000 words uniformly at random, and a word has 4.5 letters on average: that gives bits per character.
Fill in every blank (hints in the boxes). Enter moves to the next blank.