Variance Calculator Given n and p
Variance is a statistical measure that quantifies the amount of variation or dispersion of a set of values. The variance calculator given n and p is a tool that calculates the variance of a binomial distribution, which is a discrete probability distribution of a random variable which can take on a finite number of values.
- Enter the value of n (the number of trials) in the first input field.
- Enter the value of p (the probability of success on each trial) in the second input field.
- Click the “Calculate” button.
The formula for calculating the variance of a binomial distribution is:
Var(X) = np(1 – p)
| n | p | Variance |
|---|
- Ensure that the values of n and p are within the valid range.
- Remember that the variance is always non-negative.
What is the difference between variance and standard deviation?
Variance measures how spread out the values are from their mean, while standard deviation measures the same thing but in a way that is more intuitive and easier to understand.
For more information on binomial distributions, see the Khan Academy.