Grade 7 | Unit 8 | Lesson 3: What Are Probabilities? | Practice Problems

List the sample space for flipping a coin.

• Heads

• Tails

List the sample space for selecting a random season of the year.

• Spring

• Summer

• Fall

• Winter

List the sample space for selecting a random day of the week.

• Sunday

• Monday

• Wednesday

• Tuesday

• Thursday

A computer randomly selects a letter from the alphabet. How many different outcomes are in the sample space?

• 25

• 26

• 27

A computer randomly selects a letter from the alphabet. What is the probability the computer produces the first letter of your first name?

What is the probability of selecting a random month of the year and getting a month that starts with the letter “J?”

Give an example of what a person might weigh on Earth and on the Moon.

Here is a diagram of the base of a bird feeder which is in the shape of a pentagonal prism. Each small square on the grid is 1 square inch. The distance between the two bases is 8 inches. What will be the volume of the completed bird feeder?

Find the surface area of the triangular prism.