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Year 8 Probability Worksheet — Level 3 — Practice Set 2 — 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 2 — Answers

Write each probability as a fraction in simplest form.

1.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
2.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
3.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
4.A bag has 1 red, 3 blue and 3 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 7
  2. P(blue) = 3/7 =
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 an even number?

Answer:

  1. Favourable outcomes: 3 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 bag has 5 red, 3 blue and 5 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 13
  2. P(blue) = 3/13 =
9.A bag has 2 red, 5 blue and 6 green marbles. One is chosen at random. What is the probability it is red?

Answer:

  1. Total marbles: 13
  2. P(red) = 2/13 =
10.A bag has 6 red, 6 blue and 6 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 18
  2. P(blue) = 6/18 =
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