The standard deviation of a binomial distribution for which n = 100 and p = .35 is
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The standard deviation of the binomial distribution is 4.77.
Explanation:
Given, the number of trials, n = 100
Probability of success of each trial, p = 0.35
The standard deviation(σ) of a probability distribution is the measure of the variability of possible outcomes.
In a binomial experiment, the standard deviation of the probability distribution X is equal to the square root of the variance.
where variance is given by
And hence the formula for the standard deviation is
where n is the number of trials and p is the probability of success of each trial.
Substituting the given values,
Therefore, the standard deviation of the binomial distribution is 4.77.
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