Basic Probability

What is the probability of the spinner landing on the section labeled G? (Note: not all of the letters are equally likely)

What is the probability of the spinner landing on the section labeled P? (Note: not all of the letters are equally likely)

What is the probability of the spinner landing on the section labeled R or G? (Note: not all of the letters are equally likely)

Six papers are placed in a bag with names written on them. The names are: Lin, Mai, Mai, Noah, Priya, and Priya. If one name is chosen at random, what is the probability that it is Priya?

Six papers are placed in a bag with names written on them. The names are: Lin, Mai, Mai, Noah, Priya, and Priya. If one name is chosen at random, what is the probability that it is Noah?

A spinner is divided into 5 equal sections. 2 of them are red, 1 of them is orange, 1 of them is yellow, and 1 of them is green.

What is the probability that it lands on red?

• 0 

A spinner is divided into 5 equal sections. 2 of them are red, 1 of them is orange, 1 of them is yellow, and 1 of them is green.

What is the probability that it lands on blue?

A spinner is divided into 5 equal sections. 2 of them are red, 1 of them is orange, 1 of them is yellow, and 1 of them is green.

What is the probability that it lands on orange or yellow?

What probability indicates that the event will always occur?

• 0

• 1

• 0.5

• There is not an event that will always occur. Life is too unpredictable.

What probability indicates that the event will never occur?

• 0

• 1

• 0.1

• There is not an event that will never occur. Life is too unpredictable.