In [26]: president_data - Table.read table( \"president births.csv\") president_

Question

In [26]: president_data - Table.read table( "president births.csv") president_data Out [26]: Birth Birth Days (since 1 CE) Days since January1 at Birth Death Death Days (since Days since January 1 at Life Life Name Birth Death Death Years Days George 1732 1799- 632286 53 1799 657053 348 67 24767 Washington 02-22 12-14 John Adams -30 07-04 Thomas Jefferson04-13 07-04 1735- 1826- 1735 1743- 1826 743 1836- 1751 303 1826 666751 185 90 33119 1826 666751 185 83 30397 1751 James Madison 639248 1836 670398 180 85 31150 03-16 06-28 James Monoe 04-28 07-04 1845- James Monroe 1758.- 1758 641848 118 1831 668577 185 73 26729 1767 Andrew Jackson 03-15 06-08 1845 1767 645091 673665 159 78 28574 John Quincy 1767- 1848- 192 1848 674655 54 80 29446 Adams 102-23 1767 07-11 William Henry 1773 1841 1841 672139 647249 40 94 68 24890 Harrison 02-09 04-04 Martin Van Buren 2-05 07-24 1782 1862 1782 339 1862 679920 205 79 29085 1784 1850 784 11-24 07-09 Zachary Taylor 1784- 651555 329 1850 675522 190 65 23967 (28 rows omitted)

Explanation / Answer

lower bound of (7-1)/2 or lower bound of (8-1)/2 both equals 3 .

Whichever cell , just deduct 1 and divide by two and get its lower bound to get middle element

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