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19.X.1. Definition
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4 cards from this lesson. Good the night before a test.
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- 1.
What is the PMF of a Poisson distribution?
Hint
It involves the average rate of events (λ).
- 2.
If λ = 3, what is the mean of the distribution?
Hint
Recall that mean and variance are equal in Poisson distribution.
- 3.
What is the mean of a Poisson distribution?
Hint
It’s the same as the variance.
- 4.
True or False: The Poisson distribution can be used to describe the number of emails received in an hour.
Hint
Consider real-life counting scenarios.
- 5.
A store receives, on average, 20 customers per hour. Calculate the probability that exactly 15 customers arrive in the next hour.
Hint
Apply the PMF of the Poisson distribution!
- 6.
In a research study, a reviewer finds an error in 1 out of every 30 submissions. If 300 submissions were reviewed, calculate the probability of finding 10 errors.
Hint
Use your established λ to find the probability!
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
2 more questions available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting