**Repeating numbers between lotteries**

If you compare two lotteries (any two lotteries), you are bound to find numbers that repeat from one to the other one. This will happen in all cases and if the number of draws is large enough, the number of repeats will approach the theorical values that can be expected.

I compared the results of the Super 7 and the Loto 6/49 for all 653 draws. I choose the draws on Friday for Super 7 and the draw on the following Saturday for the Loto 6/49. The bonus number was never considered.

Here are the results (in order: # of repeating numbers, # of times, %):

0 -- 247 -- 37.8%

1 -- 263 -- 40.3%

2 -- 127 -- 19.5%

3 -- 14 -- 2.1%

4 -- 2 -- 0.3%

5 -- 0 -- 0.0%

6 - -0 -- 0.0%

So in 63.2% of the draws, you get at least one repeat. I did not calculate the actual probability but I may give it a try although it is a little more complicated with 6 numbers out of 49 in Loto 6/49 and 7 numbers out of 47 on Super 7.

But one thing I know is that, if you compare consecutive draws for the Loto 6/49, you also get a high percentage of repeats and it is very near the theorical percentage that is expected.

Here are the results (in order: # of repeating numbers, # of times, % actual, % theorical):

0 -- 1033 -- 43.3% -- 43.6%

1 -- 989 -- 41.4% -- 41.3%

2 -- 321 -- 13.4% -- 13.2%

3 -- 43 -- 1.8% -- 1.8%

4 -- 1 -- 0.0% -- 0.1%

5 -- 0 -- 0.0% -- 0.0%

6 -- 0 -- 0.0% -- 0.0%

So in 56.7% of the draws, you get at least one repeat and you would expect this to happen 56.4% of the times.