How often does a winning number win in a period?

Given a series of 30-day periods, how often does an EZ2 lotto number win? In other words, if a number has won once, will it win again? What if a number has already won 5 times, will it continue to win; or will it stop winning?

Sampled data were taken from 2004 - 2008 results, totaling 1495 results. Arranged chronologically, the results were divided into 49 groups wherein each group contains 30 draw results. In every group, the number of times each lotto number had won were counted and tallied. These are the results.

 Freq Instance % 0 211 13.9% 1 410 27.0% 2 432 28.4% 3 274 18.0% 4 135 8.9% 5 45 3.0% 6 7 0.5% 7 3 0.2% 8 2 0.1% 1519 100.0%

For each group, most of the numbers had won only twice (28.4%). In almost equal probability and equal instances, the numbers would win only once (27%). There were a few cases when some numbers could win three times (18%); while some didn't win at all (13.9%). Very rare that a number could win more than 3 times.

In the above table, Freq means the number of times a number usually win. So, 2 means winning twice. Instance would be the presence or volume of existence. For example, there were 432 instances when a group of lotto numbers had won up to 2 times only in every period.

What do the data tell us?

This means that if a number had already won twice in a 30-draw period, most likely (55.4%), it won't win again. The probability that it can win the third time is 18%; and the probability to win more than 3 times is only 12.7%.

Therefore, if you have data from the last 30 draws, you would usually play the numbers that have won only once, or have not won yet.

However, this does not mean that you are going to ignore the very active numbers. Based on the above data, at least one number could actually win 5 times up to 8 times in a given period. If you could spot this number, go ahead, play it.