What is experimental probability

Step-by-step explanation:

The empirical probability, relative frequency, or experimental probability of an event is the ratio of the number of outcomes in which a specified event occurs to the total number of trials, not in a theoretical sample space but in an actual experiment

The probability of obtaining a 6 when I throw a die is \frac{1}{6}, so if I throw the die 6 times I should expect to get exactly one 6.

In theory this statement is true, but in practice it might not be the case. Try throwing a die 6 times - you won't always get exactly one 6.