Never has it been possible for one man to know another's thoughts with hundred percent certainty.

In a criminal case, you must prove 99 percent certainty.

And I can't say with 100 percent certainty that it isn't.

They can come close, though: within 99 percent certainty.

She identified only one person with 100 percent certainty in two photo arrays as having been present at the team party.

And I give you these conclusions with 100 percent certainty.

He can say with only 85 percent certainty that the improved performance stemmed not from chance alone.

Since it's coming from a spot about three feet up, I can tell with 99 percent certainty who it is.

"I can make that prediction with one hundred percent certainty."

But a ninety percent certainty meant one time in ten you were dead.