A deck of cards contains RED cards numbered 1,2,3,4 and BLUE cards numbered 1,2,3, as shown below.

 A deck of cards contains RED cards numbered 1,2,3,4 and BLUE cards numbered 1,2,3, as shown below.

 

Let R be the event of drawing a red card, B be the event of drawing a blue card, E be the event of drawing an even numbered card, and O be the event of drawing an odd numbered card.
Drawing the Red 3 is an outcome in which of the following events? Select all correct answers.
________________________________________
Yes that's right. Keep it up!
________________________________________
•     R AND O

•     B OR E
•      R′
•     E′
•   E OR R

 
Answer Explanation
Correct answer:
R AND O
E′
E OR R
The Red 3 is both red and odd, so it is an outcome in both R and O. Therefore, it is an outcome in R AND O.
The Red 3 is not even, so it is an outcome in E′.
The Red 3 is an outcome in R, so it is in E OR R (even though it is not in E).
 

Thanks