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