The mean and the variance are equal in________________?
Correct answer: D. The Poisson distribution
- A. All probability distribution
- B. The hypergeometric distribution
- C. The binomial distribution
- D. The Poisson distribution
Explanation
For a Poisson distribution with parameter λ, both the mean and variance equal λ. The binomial variance is npq, which generally differs from its mean np.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Probability Distributions
132 free Probability Distributions MCQs from Statistics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Statistics questions like this
Statistics is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Probability Distributions questions
The probability of success changes from trial to trial in:___________________?
The mean of binomial distribution is:__________________?
In a binomial probability distribution it is impossible to find______________?
When 'n' becomes very large, binomial distribution tends to ______________?
For a binomial distribution with n = 15 as p changes from. 50 toward. 05 the distribution will__________?
In a binomial distribution, n = 10 p= 3/5, its mean is:_________________?