Head of Statistics Professor Jake Olivier was interviewed about tonight's $120 million Powerball jackpot.

Professor Olivier spoke to A Current Affair about the probability of winning the big prize in the draw, which he estimates to be approximately one in 134 million. 

Over the past few years, Prof Olivier has established himself as our resident lottery expert, providing analysis to mainstream media outlets several times about the odds of winning lottery. 

WATCH the A Current Affair story.