12.2 - Definition of Probability Mass Function (PMF)
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Practice Questions
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Define Probability Mass Function (PMF).
💡 Hint: What does PMF stand for?
List two examples of discrete random variables.
💡 Hint: Think of common experiments.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does PMF stand for?
💡 Hint: Focus on the word 'Mass'.
True or False: PMF can be used for continuous random variables.
💡 Hint: Consider the variable type PMF applies to.
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Challenge Problems
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A factory produces light bulbs, and history shows that 90% are good and 10% are defective. Create a PMF for the quality of a sample of three light bulbs.
💡 Hint: Use the binomial probability formula.
You roll a die three times. What is the PMF for rolling a total of 10?
💡 Hint: Think about breaking down the outcomes and using combinations.
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