Probability Quiz - Mathematics Statistics and Probability

Free practice quiz: Probability (Mathematics Statistics and Probability). 14 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This Mathematics Statistics and Probability practice quiz has 14 multiple-choice questions on Probability, and 14 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. A coin is flipped 100 times and lands heads 58 times. Experimental P(heads)?

   1. 0.58
   2. 0.5
   3. 0.42
   4. 0.6
   Show answer

   Answer: A. 0.58

   58 ÷ 100 = 0.58.

2. Which word best describes an event with probability 0?

   1. certain
   2. impossible
   3. unlikely
   4. even chance
   Show answer

   Answer: B. impossible

   A probability of 0 means the event can never happen.

3. Write the probability 25% as a fraction.

   1. 1/4
   2. 1/25
   3. 1/2
   4. 2/5
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   Answer: A. 1/4

   25% = 25/100 = 1/4.

4. A bag has 1 red, 1 blue and 1 green counter. One counter is taken at random. Are the outcomes equally likely?

   1. no, red is more likely
   2. no, green is less likely
   3. it cannot be told
   4. yes, each has probability 1/3
   Show answer

   Answer: D. yes, each has probability 1/3

   Each colour has one counter out of three, so each has probability 1/3.

5. A spinner has 8 equal sections numbered 1 to 8. What is the probability of landing on a number greater than 6?

   1. 1/8
   2. 3/4
   3. 1/4
   4. 1/3
   Show answer

   Answer: C. 1/4

   Numbers greater than 6 are 7 and 8. That is 2 out of 8, which is 1/4.

More questions in this quiz

Answers and explanations are in the full quiz.

1. What is the theoretical probability of rolling a 3 on a fair die?
2. Which word best describes an event with probability 1?
3. Which of these cannot be a probability?
4. A fair coin has an even chance of landing heads. Write this probability as a decimal.
5. How many different outcomes are there when a fair die is rolled once?
6. A bag has 4 red counters and 6 blue counters. What is the probability of picking a red counter at random?
7. A fair die is rolled once. What is the probability of getting an even number?
8. A drawing pin is dropped 50 times and lands point up 20 times. What is the experimental probability of landing point up?
9. A spinner is spun 200 times and lands on red 90 times. Estimate the probability of red.

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