The faces of a number cube are numbered 1 through 6. Event A = {Rolling a 1, 2, or 3}. What is the complement of event A?

A. {Rolling a 1, 2, or 3}
B. {Rolling a 2, 3, or 4}
C. {Rolling a 4, 5, or 6}
D. {Rolling a 3, 4, or 5}

Question

The faces of a number cube are numbered 1 through 6. Event A = {Rolling a 1, 2, or 3}. What is the complement of event A?

 		A.	{Rolling a 1, 2, or 3}
 		B.	{Rolling a 2, 3, or 4}
 		C.	{Rolling a 4, 5, or 6}
 		D.	{Rolling a 3, 4, or 5}

neer2890 · Answer

Complement of an event is all the other outcomes (not the ones you want).
for e.g.,
	When the event is Heads, the complement is Tails
	When the event is {Monday, Wednesday} the complement is {Tuesday, Thursday,               Friday, Saturday, Sunday}
	When the event is {Hearts} the complement is {Spades, Clubs, Diamonds, Jokers

neer2890 · Answer

so when the event is { Rolling a 1,2 or 3}
it's complement is {Rolling a 4 , 5 or 6}

anonymous · Answer

Thanks

neer2890 · Answer

you're welcome..:)