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In the previous module, we learned how the spin of an electron was discrete. In some units, it could only by \(+ \frac{1}{2}\) or \(- \frac{1}{2}\). That is, you could get only two possible outcomes if you tried measuring the spin of an electron.
What is this situation most similar to?

The amount of profits you make in the stock market

Getting a head or a tail on a coin toss

Trying to close your eyes while you sneeze

Asking a Scout to tie a knot