The experiments involved tossing three coins simultaneously. The experiment was carried out a hundred times and it was noted that three heads occurred 40 times. What is the difference between the experimental probability of getting three heads and it's theoretical probability? Write the answer in the simplest form of a fraction

The theoretical probability of getting three heads when tossing three coins simultaneously is (1/2)^3 = 1/8.

The experimental probability of getting three heads was observed to be 40/100 = 2/5.

The difference between the experimental probability and theoretical probability is:
2/5 - 1/8 = 16/40 - 5/40 = 11/40.

Therefore, the difference between the experimental probability of getting three heads and its theoretical probability is 11/40.