As the title states, how do you determine this? I remember doing this in high school like you would numerous all the numbers you have by the total number of mixes of those numbers or something to get how many different mixes of numbers there are possible. You would find the % of one series from that or something?
Im particularly thinking about seeing the % chance of seeing 712 as a sequence since thats my birthday (July 12). I keep seeing 712 EVERYWHERE I go and on EVERYTHING so Im really curious to know what the possibility likelihood is of coming across that series of numbers.