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

Write each probability as a fraction in simplest form.

1.A bag has 5 red, 2 blue and 2 green marbles. One is chosen at random. What is the probability it is red?

Answer:

  1. Total marbles: 9
  2. P(red) = 5/9 =
2.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
3.A bag has 4 red, 4 blue and 1 green marbles. One is chosen at random. What is the probability it is red?

Answer:

  1. Total marbles: 9
  2. P(red) = 4/9 =
4.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
5.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
6.A fair six-sided die is rolled. What is the probability of rolling a number greater than 1?

Answer:

  1. Favourable outcomes: 5 out of 6
7.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
8.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
9.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
10.A fair six-sided die is rolled. What is the probability of rolling an even number?

Answer:

  1. Favourable outcomes: 3 out of 6
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