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}

Answer 1

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

Answer 2

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

Answer 3

Thanks

Answer 4

you're welcome..:)