I have just a question about probability/odds and combinatorics here.
- In Singapore, we have a lottery called Toto.
- Buyers can pick at least six numbers, from 1 to 49.
- Group 1 prize odds is 1 in 13,983,816 (49c6), where the buyer must win all 6 numbers bought
- Why is Group 2 odds 1 in 2,330,636, where the buyer must win 5 numbers plus an additional number?
- I figured it was from (49c6)/6 but have no idea why)
- Would be great if anyojne could give insights to Group 3 to 7 as well