A number is selected at random from the set {2, 3, 4, ... 10}. Which event, by definition, covers the entire sample space of this experiment?

Question

A. 

The number is greater than 2.

B. 

The number is not divisible by 5.

C. 

The number is even or less than 12.

D. 

The number is neither prime nor composite.

E. 

The square root of the number is less than 3.

Answer 1

C. The number is even or less than 12 .

as the event is 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10

A number selected at random from this set can be the even number or number less than 12.