Listed below are the highest amounts of net worth (in millions of dollars) of celebrities. The celebrities are Tom Cruise, Will Smith, Robert De Niro, Drew Carey, George Clooney, John Travolta, Samuel L. Jackson, Larry King, Demi Moore, and Bruce Willis. Find the range, variance and standard deviation. Are the measures of variation typical for all celebrities?
{ 250, 200, 185, 165, 160, 160, 150, 150, 150, 150 }