Complementary Probability

What is the complement to: rolling an even number

• Not rolling an even number (rolling an odd number)

• rolling a 2,4,6

• Rolling a number less than 4

The probability of an event is 8/9. What's the probability of the complement to this event?

• 1/9

• 1

• 2/9

• 8/9

If the probability of an event A is 0.6, what is the probability of its complementary event?

• 0.4

• 0.2

• 0.6

• 1.0

If the probability of an event A is 0.4, what is the probability of its complementary event?

• 0.6

• 0.4

• 1.0

• 0.2

If the probability of an event A is 0.5, what is the probability of its complementary event?

• 0.5

• 0.2

• 2

• 1

If the probability of an event A is 0.1, what is the probability of its complementary event?

• 0.2

• 1.0

• 0.9

• 0.5

What is the probability of an event and its complementary event occurring together?

• 0

• 2

• 0.5

• 1

If the probability of an event A is 0.2, what is the probability of its complementary event?

• 0.5

• 1.0

• 0.2

• 0.8

If the probability of an event A is 0.7, what is the probability of its complementary event?

• 0.7

• 0.3

• 1.0

• 0.5

What's the complement of drawing a blue marble written as a percent?

• 33.3%

• 66.67%

• 8/12

• 80%