Simple probability
The question
4 red, 4 blue, 4 green — P(blue)
4 + 4 + 4=12
4 + 4 + 4=12
blue:4
4 + 4 + 4=12
blue:4
4 + 4 + 4=12
=
- Count everything first: 4 + 4 + 4 = 12 altogether. That is the bottom of the fraction.
- Now the ones that count as a win: 4 blue.
- Chance is the wins over the total. So it is 4 out of 12.
- And can be written in bigger pieces: .
How it works.
- 01
Count everything first: 4 + 4 + 4 = 12 altogether. That is the bottom of the fraction.
- 02
Now the ones that count as a win: 4 blue.
- 03
Chance is the wins over the total. So it is 4 out of 12.
- 04
And 4/12 can be written in bigger pieces: 1/3.