Knowee
Questions
Features
Study Tools

Define binomial distribution. How is it related to Poisson distribution.

Question

Define binomial distribution. How is it related to Poisson distribution.

🧐 Not the exact question you are looking for?Go ask a question

Solution

Sure, let's break this down.

  1. Definition of Binomial Distribution:

A binomial distribution is a probability distribution that describes the number of successes in a fixed number of independent Bernoulli trials (experiments) each with the same probability of success.

For example, flipping a coin 10 times and counting the number of heads (successes) is a binomial distribution. Each flip (trial) is independent (doesn't affect the others), and the probability of getting a head (success) is the same for each flip.

The binomial distribution is defined by two parameters: the number of trials (n) and the probability of success in a single trial (p). The probability mass function of a binomial distribution is given by:

P(X=k) = C(n, k) * (p^k) * ((1-p)^(n-k))

where P(X=k) is the probability of k successes in n trials, C(n, k) is the number of combinations of n items taken k at a time, p is the probability of success on a single trial, and (1-p) is the probability of failure on a single trial.

  1. Relationship to Poisson Distribution:

The Poisson distribution is another probability distribution that describes the number of events occurring in a fixed interval of time or space.

The binomial distribution and the Poisson distribution are related in that the Poisson distribution can be used as an approximation to the binomial distribution when the number of trials (n) is large, the probability of success (p) is small, and np is moderate.

This is known as the Poisson approximation to the binomial distribution. The parameter of the Poisson distribution (λ) is equal to np, the expected number of successes in the binomial distribution.

So, in summary, the binomial distribution describes the number of successes in a fixed number of independent trials, and it can be approximated by the Poisson distribution when the number of trials is large and the probability of success is small.

This problem has been solved

Similar Questions

Define Poisson distribution. What are its applications.

A binomial distribution may be approximated by a poisson distribution whena.n is small and p is smallb.n is large and p is largec.n is large and p is smalld.n is small and p is large

Which type of distribution can the Poisson model be used to approximate?Question 1Answera.Geometric distributionb.Binomial distributionc.Normal distribution

Explain exponential distribution. Explain its relationship with Poisson distribution.

The hypergeometric probability distribution is identical to the Poisson probability distribution the binomial probability distribution the normal distribution None of these alternatives is correct

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.