GED Math - Probability Problems - quick review and practice

Sep 14, 2026

Probability problems for GED Math focus on comparing favorable outcomes to total equally likely outcomes and expressing results as simplified fractions between 0 and 1. The material includes quick review hints for writing probability as a ratio, handling two independent events by multiplying probabilities, and working with diagrams like dice, coins, and colored marbles. Practice and word problems guide learners to set up correct numerators and denominators, then simplify to final answers.

LanguageEnglish

CategoryExam

FormatPDF

Pages3

Reading Time8 min

AccessFree to download

Probability Problems

Quick Review and Helpful Hints

Practice Problems

Word Problems

Answer Keys

Step-by-Step Explanations

Practice 􀀏 Progress 􀀏 Succeed | GED Math ~~ ~~ [E](EffortlessMath.com)[f](EffortlessMath.com)[f](EffortlessMath.com)[o](EffortlessMath.com)[r](EffortlessMath.com)[t](EffortlessMath.com)[l](EffortlessMath.com)[e](EffortlessMath.com)[s](EffortlessMath.com)[s](EffortlessMath.com)[M](EffortlessMath.com)[a](EffortlessMath.com)[t](EffortlessMath.com)[h](EffortlessMath.com)[.](EffortlessMath.com)[c](EffortlessMath.com)[o](EffortlessMath.com)[m](EffortlessMath.com) Probability Problems | Name: | D | ate: | S | core: / 18 | | --- | --- | --- | --- | --- | Quick Review and Helpful Hints number of favorable outcomes Probability = . It is always between 0 (impossible) and 1 (certain) . total number of equally likely outcomes Write it as a fraction in simplest form. For two independent events both happening, multiply their probabilities. ▷ Example: A bag has 3 red and 5 blue marbles. Find the probability of drawing red. Work: There are 3 red marbles out of 3 + 5 = 8 total, so P(red) = 38 . ⋆ Answer: 38 3 red of 8 marbles: P = 38 . ♦ Practice Problems Find each probability. Write answers in simplest form. ♦ Word Problems 15. A bag has 5 red, 3 blue, and 2 green marbles. What is the probability of drawing red? 16. A fair die is rolled. What is the probability of an odd number? 17. A jar has 20 marbles, 8 of them yellow. What is the probability of drawing yellow? 18. Two coins are 􀀃ipped. What is the probability of getting two tails? [E](EffortlessMath.com)[f](EffortlessMath.com)[f](EffortlessMath.com)[o](EffortlessMath.com)[r](EffortlessMath.com)[t](EffortlessMath.com)[l](EffortlessMath.com)[e](EffortlessMath.com)[s](EffortlessMath.com)[s](EffortlessMath.com)[M](EffortlessMath.com)[a](EffortlessMath.com)[t](EffortlessMath.com)[h](EffortlessMath.com)[.](EffortlessMath.com)[c](EffortlessMath.com)[o](EffortlessMath.com)[m](EffortlessMath.com) 1 Scan Me Practice 􀀏 Progress 􀀏 Succeed | GED Math ~~ ~~ [E](EffortlessMath.com)[f](EffortlessMath.com)[f](EffortlessMath.com)[o](EffortlessMath.com)[r](EffortlessMath.com)[t](EffortlessMath.com)[l](EffortlessMath.com)[e](EffortlessMath.com)[s](EffortlessMath.com)[s](EffortlessMath.com)[M](EffortlessMath.com)[a](EffortlessMath.com)[t](EffortlessMath.com)[h](EffortlessMath.com)[.](EffortlessMath.com)[c](EffortlessMath.com)[o](EffortlessMath.com)[m](EffortlessMath.com) Answer Keys 1. ~~ ~~16 2. ~~ ~~12 3. ~~ ~~12 4. ~~ ~~13 5. ~~ ~~13 6. ~~ ~~12 7. 8. 9. 10. 11. 12. 13. ~~ ~~13 14. ~~ ~~15 15. ~~ ~~12 16. ~~ ~~12 17. ~~ ~~25 18. ~~ ~~14 Step-by-Step Explanations 1. Start by naming the process: Probability compares favorable outcomes to total equally likely outcomes, so write that ratio and simplify. The setup/work is There is one 4 out of 6 equally likely faces, so P = 16 . So the 􀀂nal answer is 16 . 2. A good way to think about this is: Probability compares favorable outcomes to total equally likely outcomes, so write that ratio and simplify. The setup/work is Even faces are {2 , 4 , 6} – 3 out of 6: 36 = 12 . So the 􀀂nal answer is 12 . 3. Step by step: Probability compares favorable outcomes to total equally likely outcomes, so write that ratio and simplify. The setup/work is A coin has 2 sides, one of which is heads: 12 . So the 􀀂nal answer is 12 . 4. Take it one move at a time: Probability compares favorable outcomes to total equally likely outcomes, so write that ratio and simplify. The setup/work is 2 red out of 6 total: 26 = 13 . So the 􀀂nal answer is 13 . 5. Start by naming the process: Probability compares favorable outcomes to total equally likely outcomes, so write that ratio and simplify. The setup/work is Outcomes more than 4 are {5 , 6} – 2 of 6: 26 = 13 . So the 􀀂nal answer is 13 . 6. A good way to think about this is: Probability compares favorable outcomes to total equally likely outcomes, so write that ratio and simplify. The setup/work is Odd numbers {1 , 3 , 5 , 7} – 4 of 8: 48 = 12 . So the

FAQs

How do you calculate probability for equally likely outcomes?

Probability equals the number of favorable outcomes divided by the total number of equally likely outcomes. Write the result as a simplified fraction.

How do you find probability when two independent events both happen?

Multiply the probabilities of each independent event. Then simplify the product into a fraction in simplest form.

What types of probability word problems are included here?

Problems use common scenarios such as drawing marbles from a bag, rolling a fair die, drawing from a jar, and flipping coins.

Sep 14, 2026

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