In this state, called an equal superposition, there are equal probabilities of measuring either | 00 ⟩ {\displaystyle |00\rangle } or | 11 ⟩ {\displaystyle |11\rangle } , as | 1 / 2 | 2 = 1 / 2 {\displaystyle |1/{\sqrt {2}}|^{2}=1/2} .