List the outcomes and find the chance of one event

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Ren painted a spinner with 9 equal parts in art class. What is the chance of landing on a sun, as a fraction in simplest form?

   4/9
2. 2.

   Tala's box holds 10 blue, 4 red and 2 green crayons, all the same size. Tala picks one without looking. What is the chance it is blue, as a fraction in simplest form?

   5/8
3. 3.

   M, I, S, S, I, S, S, I, P, P, I (11 tiles). Zee spells MISSISSIPPI with letter tiles (that is a lot of tiles) and mixes them in a box. What is the chance of picking an S without looking, as a fraction in simplest form?

   4/11
4. 4.

   Bo's pencil case holds 4 pencils and 1 pen (the zipper squeaks). Bo grabs one without looking. What is the chance it is a pencil, as a decimal?

   0.8
5. 5.

   A jar holds 7 green, 6 white, 4 black and 3 red buttons. Esme picks one without looking. What is the chance it is green, as a decimal?

   0.35
6. 6.

   Kira's spinner has 4 equal parts: 3 moons and 1 sun. What is the chance of landing on a moon, as a decimal?

   0.75
7. 7.

   Luz has 20 picture cards: 9 cats and 11 dogs. Luz turns one over without looking. What is the chance it shows a cat, as a percent?

   45
8. 8.

   A jar holds 3 gold, 8 blue and 9 white buttons (the gold ones are the fancy ones). Milo picks one without looking. What is the chance it is gold, as a percent?

   15
9. 9.

   Noah's spinner has 10 equal parts: 7 stars and 3 hearts. What is the chance of landing on a star, as a percent?

   70
10. 10.

    Luz spells PEPPER with letter tiles (a spicy word) and picks one without looking. Which is the whole outcome list?

    • P, E, R
    • P, P, P, E, E, R
    • P, P, E, E, R