They have done their crosschecking and the results were reportedly sound to within six standard deviations, an ample margin of error for such a study.
Times, Sunday Times
Government and mortgage lenders can help to avoid mouldy mortgage debts by encouraging borrowers to leave an ample margin for error, and misfortune, when buying a house.
Times, Sunday Times
The massive overdesign of the bridge allowed ample margin for trimming the girders.
Retrieved from Wikipedia CC BY-SA 3.0