Superposition is a quantum mechanical principle and it's one of the reasons why a quantum computer is potentially so much faster than an ordinary one. Find out what it is in this video.
If a qubit is in perfect superposition between the 0 and 1 state, there is an equal probability of measuring 0 and 1. Suppose we have a system of 5 qubits, all in the equal superposition state. If we measure the qubits, what is the probability to obtain 5 zero's?