Posted by **Liz** on Sunday, December 5, 2010 at 11:44pm.

Suppose two dice (one red, one green) are rolled. Consider the following events.

A: the red die shows 5.

B: the numbers add to 4.

C: at least one of the numbers is 3.

D: the numbers do not add to 10.

Express the event "The numbers do not add to 4." in symbols.

1

B D D' B' B' ∪ D

How many elements does it contain?

2

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