Practice What Is A Discrete Random Variable? (12.1)

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6 sample questions

Question 1.
What is a discrete random variable?
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Think of outcomes you can list down.
Question 2.
Provide an example of a discrete random variable.
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Consider simple experiments.
3Question 3.
What type of values can a discrete random variable take?
- Countable
- Uncountable
- Both
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Think about how we can list these outcomes.
4Question 4.
True or False: PMFs apply to both discrete and continuous random variables.
- True
- False
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Recall the definitions of PMF.
Question 5.
If a die is rolled twice, what is the PMF for the sum of the outcomes?
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What sums can result from rolling two dice?
Question 6.
In a digital communication system, if the probability of packet loss is 0.1, what is the PMF for the number of packets lost out of 10 packets?
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How does the binomial formula apply here?

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