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- Jan 26, 2012

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**$?**

Remember to read the POTW submission guidelines to find out how to submit your answers!

Remember to read the POTW submission guidelines to find out how to submit your answers!

- Thread starter Jameson
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- Thread starter
- Admin
- #1

- Jan 26, 2012

- 4,043

Remember to read the POTW submission guidelines to find out how to submit your answers!

- Thread starter
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- #2

- Jan 26, 2012

- 4,043

1) Sudharaka

2) checkittwice

3) soroban

Solution:

Here is a similar solution from MHB member soroban with a nice diagram:

Draw a Venn diagram . . .

Code:

```
* - - - - - - - - - - - - - - - - *
| |
| * * * * * * * * |
| * * *.......* |
| * A *....B....* |
| * *.*.........* |
| * *...*.........* |
| * *...*.........* |
| * 0.3 *...*.........* |
| * *...*.........* |
| * *...*.........* |
| * *.*.........* |
| * *.........* |
| * * *.......* |
| 0.4 * * * * * * * * |
| |
* - - - - - - - - - - - - - - - - *
```

. . . . . . .[tex]P(A \cup B)' \:=\:0.4 \:=\(A' \cap B')[/tex]

[tex]\text{Therefore: }\(B) \:=\:1 - 0.3 - 0.4 \:=\:0.3[/tex]

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