Randomness of Thunderball Draws: summary of findings (2005)

The National Lottery Commission asked the Centre for the Study of Gambling at the University of Salford to verify that there is no evidence of non-randomness within the U.K. National Lottery Thunderball game. Concentrating on all Thunderball draws up to and including 26th February 2005, and a large sample of representative Lucky Dip selections issued throughout February 2005, specific objectives were to test whether:

there is equality of frequency for each Thunderball number drawn;Thunderball draws are independent of preceding draws;the frequency of top tier winners is as expected;there is no evidence of non-randomness within any combinations of ball sets and Thunderball draw machines;there is no evidence of non-randomness within Thunderball Lucky Dip selections.

Related downloads

• Randomness of Thunderball Draws

  A summary of the research undertaken into the randomness of National Lottery Thunderball Draws.

  (pdf - 41kb)