Thus, there is a 5% chance of randomly getting a value more extreme than \(z = -1.96\) or \(z = 1.96\) (this particular value and region will become incredibly important later).
We can also find the total probabilities of a score being in the two shaded regions by simply adding the areas together to get 0.0500. What did we just learn? That the shaded areas for the same z-score (negative or positive) are the same p-value, the same probability. \), that is the shaded area on the left side.
