There are 11 orange tokens and 5 white tokens in a bag. One token is selected at random. What is the probability of NOT selecting a white token?
- 11 orange tokens
- 5 white tokens
Choose the best answer.
Note
For a “not” event, count the outcomes outside the named event. This is the complement of the event.
- The complement of selecting white is selecting any other color.
- There are 11 non-white tokens out of 16 total tokens.
- So the probability is 11/16 = 11/16.
- A complement probability can also be found by doing 1 minus the probability of the event.
The correct answer is 11/16. This matches the calculation or definition, so students should focus on the reasoning rather than only memorizing the final value.