A study of the average sentence length of British public speakers produced the data in Table 2.15. Plot these data using a horizontal axis from 1500 to 2200 and a vertical axis from 0 to 80. Draw a freehand straight line that fits these data and extend this line to obtain a rough prediction of the average number of words per sentence in the year 2200.

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Speaker Year Words per Sentence Francis Bacon 1598 72.2 Oliver Cromwell 1654 48.6 John Tillotson 1694 57.2 William Pitt 1777 30.0 Benjamin Disraeli 1846 42.8 David Lloyd George 1909 22.6 Winston Churchill 1940 24.2