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

Explanation

Here n=3
Let p = probability of getting an even number in a single throw
`hArr p=(3)/(6)=(1)/(2)`
` hArr q=(1- p)=(1-(1)/(2)) =(1)/(2)`
`:. ` variance =npq `=(3xx (1)/(2) xx (1)/(2)) =(3)/(4)`