12.9 - Common Discrete Distributions and Their PMFs
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Practice Questions
Test your understanding with targeted questions
Define a discrete random variable with an example.
💡 Hint: Think of countable items.
What does PMF stand for and what does it represent?
💡 Hint: What does probability relate to in regards to outcomes?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the PMF of a Bernoulli distribution?
💡 Hint: Remember the two outcomes of Bernoulli.
True or False: The Poisson distribution can be used for modeling continuous random variables.
💡 Hint: Consider the type of variable it models.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Consider a biased coin, where the probability of heads is 0.7. If you toss it 10 times, calculate the probability of getting exactly 7 heads.
💡 Hint: You'll need to calculate the binomial coefficient.
A radio station receives an average of 5 calls per hour. What is the probability that it will receive exactly 3 calls in the next hour?
💡 Hint: Apply the Poisson formula directly.
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