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.
Orville and Wilbur Wright designed and flew their Flyer plane in December 1903. Five people were said to have witnessed the flight including John T. Daniels who took photographic evidence. Claims that Whitehead beat the Wright Brothers to the record first emerged in 1937. Orville Wright is said to have called the story a hoax and chief aviation historian at the Smithsonian Institute, Tom Crouch, rejects the claims.