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Year 10 Probability Worksheet — Level 2 — Answers

Answer sheet with worked solutions for the Year 10 probability worksheet.

Success TutoringWorksheetsAnswer sheetYear 10 · Mathematics · Probability

Year 10 Probability Worksheet — Level 2 — Answers

Write each probability as a fraction in simplest form.

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

Answer:

  1. P(not rain) = 1 − =
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 bag has 3 red, 1 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) = 1/7 =
4.A bag has 4 red, 6 blue and 2 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 12
  2. P(blue) = 6/12 =
5.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
6.A bag has 4 red, 6 blue and 6 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 16
  2. P(blue) = 6/16 =
7.A fair six-sided die is rolled. What is the probability of rolling an even number?

Answer:

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

Answer:

  1. Total marbles: 7
  2. P(green) = 1/7 =
9.A bag has 3 red, 5 blue and 2 green marbles. One is chosen at random. What is the probability it is green?

Answer:

  1. Total marbles: 10
  2. P(green) = 2/10 =
10.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
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