Unit 9 · Class 6 IB MYP · MCQ Test
Probability Introduction MCQ Test — Class 6 IB MYP
Practice 10 multiple-choice questions with instant answer reveal and explanations.
Probability Introduction — MCQ Questions
1A fair coin is tossed. What is the probability of getting heads?
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Answer: $\frac{1}{2}$
Hint: There are 2 equally likely outcomes.
Solution:
P(heads): — \frac{1}{2}
2What is the probability of rolling a 3 on a fair die?
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Answer: $\frac{1}{6}$
Hint: A die has 6 faces.
Solution:
P(3): — \frac{1}{6}
3An event that is certain to happen has a probability of:
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Answer: 1
Hint: Certain means it will definitely happen.
Solution:
A certain event has probability 1.
4A bag has 3 red and 5 blue marbles. What is the probability of picking a red marble?
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Answer: $\frac{3}{8}$
Hint: Total marbles = 3 + 5 = 8.
Solution:
P(red): — \frac{3}{8}
5What is the probability of an impossible event?
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Answer: 0
Hint: If it cannot happen, the probability is zero.
Solution:
P(impossible) = 0.
6A spinner has 4 equal sections: red, blue, green, yellow. What is the probability of landing on green?
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Answer: $\frac{1}{4}$
Hint: 4 equal sections, 1 is green.
Solution:
P(green): — \frac{1}{4}
7Which word describes an event with probability close to 1?
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Answer: Very likely
Hint: Close to 1 means it almost certainly happens.
Solution:
Events with probability near 1 are very likely.
8A die is rolled. What is the probability of getting an even number?
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Answer: $\frac{1}{2}$
Hint: Even numbers on a die: 2, 4, 6. That is 3 out of 6.
Solution:
P(even): — \frac{3}{6} = \frac{1}{2}
9The probability of rain tomorrow is 0.3. What is the probability it will NOT rain?
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Answer: 0.7
Hint: P(not rain) = 1 − P(rain).
Solution:
P(not rain): — 1 - 0.3 = 0.7
10A letter is chosen at random from the word MATHS. What is the probability of choosing M?
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Answer: $\frac{1}{5}$
Hint: MATHS has 5 letters, 1 is M.
Solution:
P(M): — \frac{1}{5}
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Tips for Probability Introduction MCQs
- 1Read each question carefully and identify what is being asked before looking at the options.
- 2Try to solve the problem mentally or on paper first, then match your answer with the options.
- 3Use elimination — rule out clearly wrong options to improve your chances even when unsure.
- 4Check units, signs, and edge cases — these are common traps in Probability Introduction MCQs.
- 5Review your mistakes after completing the test to build lasting understanding.
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