A die is tossed thrice. Getting an even number is considered as success. What is the variance of the binomial distribution?

Explanation

Here, `n=3`

`p =` Probability of getting an even number in a one throw of a dice
`p= frac{3}{6}= frac{1}{2}`


We know that, `q=1−p=1− frac{1}{2}=frac{1}{2}`


Therefore,
Variance` = npq=3 times frac{1}{2} times frac{1}{2}`

Variance` = frac{3}{4}`


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