8th Grade Probability Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 8th Grade probability worksheet.
Success TutoringWorksheetsAnswer sheet8th Grade · Mathematics · Probability8th Grade Probability Worksheet — Level 2 — Practice Set 2 — Answers
Write each probability as a fraction in simplest form.
1.A bag has 1 red, 2 blue and 5 green marbles. One is chosen at random. What is the probability it is green?
Answer:
- Total marbles: 8
- P(green) = 5/8 =
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 1 red, 5 blue and 6 green marbles. One is chosen at random. What is the probability it is red?
Answer:
- Total marbles: 12
- P(red) = 1/12 =
4.The probability that it rains tomorrow is . What is the probability that it does not rain?
Answer:
- P(not rain) = 1 − =
5.A fair six-sided die is rolled. What is the probability of rolling an even number?
Answer:
- Favorable outcomes: 3 out of 6
6.A fair six-sided die is rolled. What is the probability of rolling a multiple of 3?
Answer:
- Favorable outcomes: 2 out of 6
7.A fair six-sided die is rolled. What is the probability of rolling a number greater than 4?
Answer:
- Favorable outcomes: 2 out of 6
8.A bag has 4 red, 3 blue and 4 green marbles. One is chosen at random. What is the probability it is red?
Answer:
- Total marbles: 11
- P(red) = 4/11 =
9.A bag has 2 red, 2 blue and 2 green marbles. One is chosen at random. What is the probability it is red?
Answer:
- Total marbles: 6
- P(red) = 2/6 =
10.A bag has 2 red, 3 blue and 4 green marbles. One is chosen at random. What is the probability it is blue?
Answer:
- Total marbles: 9
- P(blue) = 3/9 =
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.
Great work. Here's what to try next: