Question

An eight sided dice is rolled 3 times. What is the probability of getting three 7's?

Answer 1

`1/8^3=1/512`.

Explanation:

Each throw is unconditional and the probability of showing 7 in a throw = (the number of favorable cases)/(total number of cases = 1/8.
For appearance of 7 in three consecutive throws, the probability is the combined probability = product of the probabilities for the separate throws = `1/8^3`..