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.
The Wright Brothers from USA invented the first airplane. Wilbur and Orville, the Wright Brothers were born on 16th April, 1867 and 19th August, 1871 respectively.They didn't continue their education after high school and instead decided to open a bicycle repair shop.nvention of the Airplane. One of the biggest inventions of 20th century, the airplane has added a new dimension to our lives. It was an important invention that opened new vistas for advanced developments in the field of aviation.