Simple Probability Opposite

The extent to which something is likely to occur is known as - 

• sample space

• an event

• probability

• data

In probability theory, the sum of an event (A) occurring and the same event NOT occurring (not A) is always - 

• 0

• based on the sample space

• variable

• 1

P(A) + P(not A) = 1

• True

• False

The likelihood that an event will NOT occur is known as its - 

• complement

• sample space

• opposite

• trial

A measurement of the likelihood of an event or events occurring on a scale of 0 to 1 is called - 

• data

• luck

• probability

• trials

What is the probability of spinning a 2 on the spinner?

• 1/2

• 1/3

• 1/8

• 1/4

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11

• 5/6

• 1/3

• 5

P(not A) = *Remember to simplify.

• 6/8

• 3/4

• 2/8

• 1/4

Event A has a probability of 0.3. What is the probability of the complement of Event A?

• 30%

• 3/100

• 7/100

• 0.7

If there is a 70% chance of rain, what is the probability that it will NOT rain?

• 100%

• 50%

• 30%

• 10%