Question

what is meant by unbiased die and biased die ?

Answer 1

In general English Language, Unbiased mean, Able to judge fairly,

Here in Mathematics, We use the term Unbiased before die , coin , etc, Because, Here we want to indicate that the coin is fair ,

In mathematics this has special meaning, Unbiased coin or die, means being fair, and Having the same probability of occuring on all the sides,

If the coin is unbiased, There are two sides, Then the probability of getting heads and tails is equal , i.e 1/2

If the die or dice is unbiased, There are 6 sides, With 1,2,3,4,5,6 occuring probability is same i.e 1/6,

So it is nothing but the thing which has same probability on all the sides is called Unbiased in mathematics,

Hope you understand, Have a great day,

Thanking you,

Bunti 360 !