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Year 8 Probability Worksheet — Level 1 — Practice Set 3 — Answers

Answer sheet with worked solutions for the Year 8 probability worksheet.

Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Probability

Year 8 Probability Worksheet — Level 1 — Practice Set 3 — Answers

Write each probability as a fraction in simplest form.

1.A bag has 5 red, 6 blue and 5 green marbles. One is chosen at random. What is the probability it is green?

Answer:

  1. Total marbles: 16
  2. P(green) = 5/16 =
2.A fair six-sided die is rolled. What is the probability of rolling a multiple of 3?

Answer:

  1. Favourable outcomes: 2 out of 6
3.A bag has 2 red, 2 blue and 2 green marbles. One is chosen at random. What is the probability it is green?

Answer:

  1. Total marbles: 6
  2. P(green) = 2/6 =
4.A fair six-sided die is rolled. What is the probability of rolling a number greater than 3?

Answer:

  1. Favourable outcomes: 3 out of 6
5.A fair six-sided die is rolled. What is the probability of rolling a number greater than 5?

Answer:

  1. Favourable outcomes: 1 out of 6
6.A bag has 3 red, 4 blue and 3 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 10
  2. P(blue) = 4/10 =
7.A bag has 4 red, 4 blue and 1 green marbles. One is chosen at random. What is the probability it is green?

Answer:

  1. Total marbles: 9
  2. P(green) = 1/9 =
8.A bag has 2 red, 4 blue and 1 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 7
  2. P(blue) = 4/7 =
9.A fair six-sided die is rolled. What is the probability of rolling an even number?

Answer:

  1. Favourable outcomes: 3 out of 6
10.A bag has 6 red, 1 blue and 6 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 13
  2. P(blue) = 1/13 =
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