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Binomial & Poisson Distributions · Question 49 of 68

Question 49

EasyOriginal question

Read the two statements and choose the correct option.

I. The Poisson distribution suits a large number of trials, each with a small chance of success.

II. A Poisson random variable can take negative values.

Options for question 49

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. I: it is the limit of the binomial when nn is large and pp small, with np=λnp = \lambda. True.

  2. II: it counts events, 0,1,2,…0, 1, 2, \dots, so it is never negative. False.

Concept
When the Poisson distribution fits
Typical time
60 s
Your time
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The rule this testsThe Poisson distribution
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Ten questions from Binomial & Poisson Distributions, at your own pace.

Practise this chapter →

Ten questions from Binomial & Poisson Distributions, at your own pace.