Year 9 Probability Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the Year 9 probability worksheet.
Year 9 · Mathematics · Probability
Year 9 Probability Worksheet — Level 3 — Answers
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Write each probability as a fraction in simplest form.
1.A fair six-sided die is rolled. What is the probability of rolling a multiple of 3?
Answer:
- Favourable outcomes: 2 out of 6
2.A bag has 3 red, 5 blue and 6 green marbles. One is chosen at random. What is the probability it is green?
Answer:
- Total marbles: 14
- P(green) = 6/14 =
3.A bag has 4 red, 1 blue and 3 green marbles. One is chosen at random. What is the probability it is red?
Answer:
- Total marbles: 8
- P(red) = 4/8 =
4.A bag has 1 red, 2 blue and 4 green marbles. One is chosen at random. What is the probability it is blue?
Answer:
- Total marbles: 7
- P(blue) = 2/7 =
5.A bag has 5 red, 3 blue and 4 green marbles. One is chosen at random. What is the probability it is green?
Answer:
- Total marbles: 12
- P(green) = 4/12 =
6.The probability that it rains tomorrow is . What is the probability that it does not rain?
Answer:
- P(not rain) = 1 − =
7.A fair six-sided die is rolled. What is the probability of rolling a number greater than 5?
Answer:
- Favourable outcomes: 1 out of 6
8.A bag has 4 red, 6 blue and 2 green marbles. One is chosen at random. What is the probability it is green?
Answer:
- Total marbles: 12
- P(green) = 2/12 =
9.The probability that it rains tomorrow is . What is the probability that it does not rain?
Answer:
- P(not rain) = 1 − =
10.A bag has 2 red, 6 blue and 4 green marbles. One is chosen at random. What is the probability it is red?
Answer:
- Total marbles: 12
- P(red) = 2/12 =
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