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Variance of Data is the expectation of the squared deviation of the random variable associated with the given statistical data from its population mean or sample mean. Check FAQs
σ2=NSuccessqBDp2
σ2 - Variance of Data?NSuccess - Number of Success?qBD - Probability of Failure in Binomial Distribution?p - Probability of Success?

Variance of Negative Binomial Distribution Example

With values
With units
Only example

Here is how the Variance of Negative Binomial Distribution equation looks like with Values.

Here is how the Variance of Negative Binomial Distribution equation looks like with Units.

Here is how the Variance of Negative Binomial Distribution equation looks like.

5.5556Edit=5Edit0.4Edit0.6Edit2
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Variance of Negative Binomial Distribution Solution

Follow our step by step solution on how to calculate Variance of Negative Binomial Distribution?

FIRST Step Consider the formula
σ2=NSuccessqBDp2
Next Step Substitute values of Variables
σ2=50.40.62
Next Step Prepare to Evaluate
σ2=50.40.62
Next Step Evaluate
σ2=5.55555555555556
LAST Step Rounding Answer
σ2=5.5556

Variance of Negative Binomial Distribution Formula Elements

Variables
Variance of Data
Variance of Data is the expectation of the squared deviation of the random variable associated with the given statistical data from its population mean or sample mean.
Symbol: σ2
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Number of Success
Number of Success is the number of times that a specific outcome which is set as the success of the event occurs in a fixed number of independent Bernoulli trials.
Symbol: NSuccess
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Probability of Failure in Binomial Distribution
Probability of Failure in Binomial Distribution is the probability of a specific outcome not occurring in a single trial of a fixed number of independent Bernoulli trials.
Symbol: qBD
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.
Probability of Success
Probability of Success is the probability of a specific outcome occurring in a single trial of a fixed number of independent Bernoulli trials.
Symbol: p
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.

Other Formulas to find Variance of Data

​Go Variance of Binomial Distribution
σ2=NTrialspqBD
​Go Variance in Binomial Distribution
σ2=NTrialsp(1-p)

Other formulas in Binomial Distribution category

​Go Mean of Binomial Distribution
μ=NTrialsp
​Go Standard Deviation of Binomial Distribution
σ=NTrialspqBD
​Go Mean of Negative Binomial Distribution
μ=NSuccessqBDp
​Go Standard Deviation of Negative Binomial Distribution
σ=NSuccessqBDp

How to Evaluate Variance of Negative Binomial Distribution?

Variance of Negative Binomial Distribution evaluator uses Variance of Data = (Number of Success*Probability of Failure in Binomial Distribution)/(Probability of Success^2) to evaluate the Variance of Data, Variance of Negative Binomial Distribution formula is defined as the expectation of the squared deviation of the random variable that follows Negative Binomial distribution, from its mean. Variance of Data is denoted by σ2 symbol.

How to evaluate Variance of Negative Binomial Distribution using this online evaluator? To use this online evaluator for Variance of Negative Binomial Distribution, enter Number of Success (NSuccess), Probability of Failure in Binomial Distribution (qBD) & Probability of Success (p) and hit the calculate button.

FAQs on Variance of Negative Binomial Distribution

What is the formula to find Variance of Negative Binomial Distribution?
The formula of Variance of Negative Binomial Distribution is expressed as Variance of Data = (Number of Success*Probability of Failure in Binomial Distribution)/(Probability of Success^2). Here is an example- 5.555556 = (5*0.4)/(0.6^2).
How to calculate Variance of Negative Binomial Distribution?
With Number of Success (NSuccess), Probability of Failure in Binomial Distribution (qBD) & Probability of Success (p) we can find Variance of Negative Binomial Distribution using the formula - Variance of Data = (Number of Success*Probability of Failure in Binomial Distribution)/(Probability of Success^2).
What are the other ways to Calculate Variance of Data?
Here are the different ways to Calculate Variance of Data-
  • Variance of Data=Number of Trials*Probability of Success*Probability of Failure in Binomial DistributionOpenImg
  • Variance of Data=Number of Trials*Probability of Success*(1-Probability of Success)OpenImg
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