Answer:
The variance is 129
Step-by-step explanation:
The variance of a binomial distribution is defined as
[tex]np(1-p)[/tex]
where n is the number of trials, and p is the prob of success. So in your case the variance is:
[tex]625\cdot 0.29\cdot 0.71 \approx 129[/tex]
(I am intentionally rounding to nearest integer to make the variance a meaningful value, since the events are discrete and not fractional measurements)
