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How to find the standard deviation of a binomial distribution

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User Innovin
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Answer:

Standard Deviation (σ) = √(n * p * q)

Explanation:

To find the standard deviation of a binomial distribution, you can use the following formula:

Standard Deviation (σ) = √(n * p * q)

Where:

n is the number of trials or observations

p is the probability of success in a single trial

q is the probability of failure in a single trial (q = 1 - p)

Here are the steps to find the standard deviation of a binomial distribution:

Determine the values of n (number of trials) and p (probability of success).

Calculate the value of q (probability of failure) by subtracting p from 1 (q = 1 - p).

Multiply n, p, and q together.

Take the square root of the result obtained in step 3.

The final result will be the standard deviation (σ) of the binomial distribution.

Note: The formula assumes that the trials or observations in the binomial distribution are independent and have the same probability of success (p) for each trial.

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User Marc Towler
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