Probability Quiz

Grade 7 · Math · Quiz

Ten questions covering probability basics, sample space, complements, and experimental vs. theoretical probability.

Questions

A standard 6-sided die is rolled. What is P(rolling an even number)?
1. 1/6
2. 1/2
3. 1/3
4. 2/3
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Answer: 1/2
Probability can be expressed as a fraction, decimal, or percent.
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Answer: True
P(event) = favorable outcomes ÷ ___ outcomes.
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Answer: total
A spinner has 8 equal sections numbered 1–8. What is P(spinning a number greater than 5)?
1. 3/8
2. 5/8
3. 1/2
4. 1/8
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Answer: 3/8
If P(A) = 0.7, then P(not A) = 0.3.
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Answer: True
A student draws a card from a standard deck 40 times and gets a heart 12 times. What is the experimental probability of drawing a heart?
1. 1/4
2. 12/40
3. 1/13
4. 3/10
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Answer: 3/10
The set of all possible outcomes in a probability experiment is called the ___ space.
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Answer: sample
A probability of 1 means the event is certain to happen.
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Answer: True
A bag has 4 yellow and 6 purple tiles. What is P(NOT yellow)?
1. 4/10
2. 6/10
3. 2/5
4. 4/6
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Answer: 6/10
As the number of trials in an experiment increases, the experimental probability gets closer to the ___ probability.
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Answer: theoretical