Now letâs see what we get when we do the math. The mean of this new data set would be the sum of the values ($690,000) divided by the number of values (11). This gives you a mean or average salary for the accounting department of $62,727.
Forget Orville Wright and his brother Wilbur. Start thinking instead of Alberto Santos Dumont, the Brazilian pioneer aviator and the man who really invented the aeroplane. That is the attitude here in Brazil, as the country prepares to celebrate the centenary tomorrow of the world's first powered flight.
During the years 1900, 1901, and 1902, Orville and Wilbur experimented at Kitty Hawk with kites, gliders, and a wind tunnel they built to test wing design. The Wright brothers developed the first effective airplane, and made the historic first airplane flight in 1903.