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Year 8 Probability Worksheet — Level 2 — Answers

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

Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Probability

Year 8 Probability Worksheet — Level 2 — Answers

Write each probability as a fraction in simplest form.

1.A bag has 6 red, 4 blue and 5 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 15
  2. P(blue) = 4/15 =
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, 2 blue and 3 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

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

Answer:

  1. Total marbles: 14
  2. P(green) = 5/14 =
6.A bag has 5 red, 4 blue and 3 green marbles. One is chosen at random. What is the probability it is red?

Answer:

  1. Total marbles: 12
  2. P(red) = 5/12 =
7.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
8.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
9.A bag has 4 red, 2 blue and 2 green marbles. One is chosen at random. What is the probability it is red?

Answer:

  1. Total marbles: 8
  2. P(red) = 4/8 =
10.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
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