How likely? Chances from 0 to 1

Answer Key - Grade 7 Math Worksheet - Building Confidence

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

1. 1.

   Bo's name is on 1 of 12 cards in a very fluffy hat, and one card is drawn without looking. The chance of Bo's card is 1/12. How likely is that?

   • About as likely as not
   • Likely
   • Impossible
   • Unlikely
2. 2.

   The chance that Esme's bus is on time today is 19/20. How likely is it that the bus is on time?

   • Likely
   • Unlikely
   • Certain
   • About as likely as not
3. 3.

   Star ✓, heart, star ✓, moon, star ✓, heart, sun, moon. Kira's spinner has 8 equal parts, and the checked rows show the stars. What is the chance of NOT landing on a star, as a fraction in simplest form?

   5/8
4. 4.

   1 ✓, 2 ✓, 3, 4, 5, 6. Noah rolls a fair number cube, and the checked rows show numbers less than 3. What is the chance of NOT rolling a number less than 3, as a fraction in simplest form?

   2/3
5. 5.

   The chance that Pia's kite flies today is 2/9 (there is hardly any wind). What is the chance that it does NOT fly, as a fraction in simplest form?

   7/9
6. 6.

   The chance that Ren's team wins on Saturday is 3/10. What is the chance that the team does NOT win, as a fraction in simplest form?

   7/10
7. 7.

   Tala picks a crayon without looking, and the chance of picking red is 5/8. What is the chance of NOT picking red, as a fraction in simplest form?

   3/8
8. 8.

   The chance of snow on Zee's sled day is 3/7. What is the chance of NO snow, as a fraction in simplest form?

   4/7
9. 9.

   In game A, Ari has a 1/3 chance of drawing a star card. In game B, the chance is 1/8. Which game gives the better chance?

   • They are equally likely
   • Game B
   • Game A
10. 10.

    In game A, Esme has a 3/4 chance of drawing a sun card. In game B, the chance is 3/10. Which game gives the better chance?

    • Game A
    • Game B
    • They are equally likely