Probability Complements

A clothing store sells shirts, pants, and jackets. What's the complement of randomly selecting an item that is a jacket?

• Selecting a shirt or a jacket

• Not selecting pants

• Not selecting a jacket

• Selecting a jacket

In the clothing store, the probability of randomly selecting a jacket is 34%. What's the probability of its complement?

• P(not jacket)= 56%

• P(jacket) = 66%

• P(not jacket) = 50%

• P(not jacket) = 66%

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

What's the probability of the complement of spinning on black as a fraction?

• 1/4

• 7/8

• 8/8

• 1/8

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

• 33.3%

• 66.67%

• 8/12

• 80%

Tossing a coin and landing on heads and tails

• Mutually exclusive

• Not mutually exclusive

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 complement of rolling a 3 is:

• Rolling an odd number

• Not rolling a 3

• Rolling an even number

The chance of rolling a 2 is 1/6. What is the chance of not rolling a 2?

• 2/6

• 1/6

• 5/6

• Not possible

The likelihood that a single, specific event will occur is called - 

• sample space
• compound probability
• a complement
• simple probability