<prompt> Human: I opened a Vanguard account recentlyintelligent and I was on the phone to find out if my verification went throughthey want a utility bill and a drivers license faxed to them after youve set up an account but before you can make any trades. Well when I was on the phone the lady told me how to buy and sell, and I felt very dumb and she almost implied that I should do a transaction to be sure. I saw the Vanguard Total World Index and I purchase the minimum, which is 3000 so i made the transaction without really knowing what I was doingdumb. I have no idea how this fund performs or if it is something advisible to purchase. And I learned that I cant cancel the transaction. The Expense Ratio is 0.21 which isnt too hefty I dont think, but I need some help to know if I made a bad move and what can be done about it, or just leave it alone.Thanks  <response>: Dont worry about it. Just sell and buy something else after your purchase is processed. The market isnt so volatile that youll lose all your money in a few days. 