Of course, that's just a coincidence, and there is no point in betting on the same number/numbers all the time. But, on the other hand, there's no point in changing the numbers either. Your probability of winning is always the same, so why not stick with the same numbers?
Nowadays, the winning numbers are picked by a computerized system, which makes sure that there is no bias with any of the combinations. So it is just pure luck and coincidence. Sticking with the same number or not is not going to change your luck. So rather than spending your valuable time in researching about the winning numbers, I would advise you to do your research on the odds of winning the jackpot. It will be different for different draws of the same lottery (based on rollovers and number of tickets sold).
Well, not all numbers are drawn an equal amount of times. I have learned this
from statistics from the Lotto of Ireland! I'm sure there are players who devise
their own plays and number combinations based on statistics.
I used to do pick the same numbers every week but for the last 10 years I
play a computerised pick, I let the computer pick the numbers for me.
I have checked the 6 numbers I used to play over the last 10 years and they
have never been picked in the Jackpot. The most I would have won over 10
years is €4 so i can deduce that the 6 numbers were not a popular combination.
I also picked 6 random numbers over the space of 5 seconds and with those
numbers I could have won €7 over 10 years.
Because of the combinations it really does come down to Luck,
I wonder by how much the odds change by studying the number drawn frequency?