Entropy of rolling a 20 sided dice.

In this case, each face of the die has an equal probability of landing face up, which is P(face) = 1/20

The entropy of rolling the die can be calculated as follows:

H=−∑ faces * P(face)log 2 * (P(face))

H=−20( 20/1 * log 2 * ( 20/1 * ))

H=−log 2 * ( 20/1)

H=log 2 * (20)

The entropy of rolling a fair twenty-sided die is log 2 * (20).