18. Binomial Distribution
The Binomial Distribution is a crucial discrete probability distribution modeling the number of successes in fixed independent Bernoulli trials. It operates under specific assumptions and includes key statistical measures such as mean, variance, and standard deviation, among others. The distribution is widely applied across various fields including engineering, quality control, and finance, and can be approximated by a normal distribution under certain conditions.
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What we have learnt
- The Binomial Distribution describes the likelihood of a specific number of successes in a given number of trials.
- It requires that trials be independent with a constant probability of success.
- Essential characteristics include mean, variance, and the ability to approximate with a normal distribution under certain conditions.
Key Concepts
- -- Binomial Distribution
- A statistical distribution that gives the probability of exactly k successes in n independent Bernoulli trials, each with a probability p of success.
- -- Probability Mass Function (PMF)
- A function that provides the probabilities of the occurrence of different possible outcomes in a discrete random variable.
- -- Cumulative Distribution Function (CDF)
- A function that indicates the probability of a random variable being less than or equal to a certain value.
- -- Normal Approximation
- A method that allows the use of the normal distribution to approximate the binomial distribution under certain conditions when n is large, and p is not near 0 or 1.
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