Those or the odds of an individual coming out a lottery winner.
Just like in bingo where you need to divide your number of cards at hand with the total number of playing cards, in lottery, you also have to divide your number of tickets by the total number of tickets sold throughout the day.

Legalities aside, it is fairly obvious that sports betting is still a major part of our culture. In fact, it is quite rare to hear of circumstances in which anyone beyond those directly involved in the game even get in trouble for engaging in sports betting.
Those involved would include coaches, officials, and players, rarely those betting on the game itself.