In a given binominal distribution, there are 625 trials, and the probability of success is p=0.29. what is the variance?

The variance is 129

Step-by-step explanation:

The variance of a binomial distribution is defined as

where n is the number of trials, and p is the prob of success. So in your case the variance is:

(I am intentionally rounding to nearest integer to make the variance a meaningful value, since the events are discrete and not fractional measurements)

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