- #1
Loren Booda
- 3,125
- 4
I run a bingo game at the nearby nursing home. The other day a lady covered all of the 25 [5x5] spaces on her card with 17 numbers yet to call. If there are 75 numbers to call at the beginning of the game, and the numbers are distributed in columns randomly among 1-15 under "B," 16-30 under "I," 31-45 under "N," 46-60 under "G," and 61-75 under "O" on a given card (with a "free" space in the central square), what are the odds that she could cover her card with at least 17 numbers to call?