Year 9 Probability Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 9 probability worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · ProbabilityYear 9 Probability Worksheet — Level 2 — Practice Set 3 — Answers
Write each probability as a fraction in simplest form.
1.A bag has 4 red, 1 blue and 4 green marbles. One is chosen at random. What is the probability it is blue?
Answer:
- Total marbles: 9
- P(blue) = 1/9 =
2.The probability that it rains tomorrow is . What is the probability that it does not rain?
Answer:
- P(not rain) = 1 − =
3.A fair six-sided die is rolled. What is the probability of rolling a number greater than 2?
Answer:
- Favourable outcomes: 4 out of 6
4.A bag has 2 red, 6 blue and 2 green marbles. One is chosen at random. What is the probability it is blue?
Answer:
- Total marbles: 10
- P(blue) = 6/10 =
5.A bag has 3 red, 6 blue and 1 green marbles. One is chosen at random. What is the probability it is red?
Answer:
- Total marbles: 10
- P(red) = 3/10 =
6.The probability that it rains tomorrow is . What is the probability that it does not rain?
Answer:
- P(not rain) = 1 − =
7.The probability that it rains tomorrow is . What is the probability that it does not rain?
Answer:
- P(not rain) = 1 − =
8.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
9.A bag has 3 red, 6 blue and 2 green marbles. One is chosen at random. What is the probability it is green?
Answer:
- Total marbles: 11
- P(green) = 2/11 =
10.A bag has 1 red, 3 blue and 1 green marbles. One is chosen at random. What is the probability it is green?
Answer:
- Total marbles: 5
- P(green) = 1/5 =
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