Practice Partial Differential Equations (12) - Probability Mass Function (PMF)

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the PMF for a fair coin toss?
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Think about the two possible outcomes.
Question 2.
List a situation involving a discrete random variable.
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Focus on countable outcomes.
3Question 3.
What does PMF represent?
- The probability of a continuous variable
- The probability of a discrete variable
- None of the above
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Remember what kind of variables PMF applies to.
4Question 4.
True or False: The total probability of a valid PMF must equal 0.
- True
- False
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Think about the concept of probability.
Question 5.
Suppose you conduct an experiment where you toss a fair coin twice. Determine the PMF for the total number of heads observed.
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Consider all combinations of heads and tails.
Question 6.
A customer service center observes the number of calls received per hour follows a Poisson distribution with a mean of 3. Determine the PMF for receiving 0, 1, 2, and 3 calls.
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Use the Poisson formula for calculations.

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