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Q: Which shape describes a Poisson distribution?
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What shape describes a poisson distribution?

A skewed bell shape.


Which distribution is used to find probabilities about the number of independent events occurring in a fixed time period with a known average rate?

The Poisson distribution. The Poisson distribution. The Poisson distribution. The Poisson distribution.


Is the Poisson probability distribution discrete or continuous?

The Poisson distribution is discrete.


If X has Poisson distribution does aX plus b have Poisson Distribution?

Yes.


Why belong exponential family for poisson distribution or geometric distribution?

Why belong exponential family for poisson distribution


What is the difference between the normal distribution and Poisson distribution?

The normal distribution is a continuous probability distribution that describes the distribution of real-valued random variables that are distributed around some mean value.The Poisson distribution is a discrete probability distribution that describes the distribution of the number of events that occur within repeated fixed time intervals, where the mean frequency is a known value, and each interval is independent of the prior interval(s)/event(s).


What describes the shape of a distribution which is approximately normal?

A "bell" shape.


What is the difference between poisson distribution and poisson process?

A poisson process is a non-deterministic process where events occur continuously and independently of each other. An example of a poisson process is the radioactive decay of radionuclides. A poisson distribution is a discrete probability distribution that represents the probability of events (having a poisson process) occurring in a certain period of time.


What is the difference between poisson and binomial distribution?

Poisson and Binomial both the distribution are used for defining discrete events.You can tell that Poisson distribution is a subset of Binomial distribution. Binomial is the most preliminary distribution to encounter probability and statistical problems. On the other hand when any event occurs with a fixed time interval and having a fixed average rate then it is Poisson distribution.


Whose distribution belong exponential family?

Poisson distribution or geometric distribution


Which distribution function has equal mean and variance?

The exponential distribution and the Poisson distribution.


Is the sample size in poisson probability distribution?

It can be.