Imagine if one was to test 100 fair coins by this method.

A casino offers a game of chance for a single player in which a fair coin is tossed at each stage.

A third party asks them, "assume a fair coin is flipped 99 times, and each time it comes up heads.

Assume a person, John, stands at the origin of a straight line and he has a fair coin.

Now, the fair coin in John's possession is replaced with a qubit.

For example, a fair coin toss is a Bernoulli trial.

A fair coin has the probability of success 0.5 by definition.

Consider the simple experiment where a fair coin is tossed four times.

In this example the random experiment consists of flipping three fair coins.

You have a fair coin and are repeatedly tossing it.