What is the total area under the standard normal curve equal

What is the total area under the standard normal curve equal to? Where does most of this area lie?

Solution

The standard normal curve has total area of 1. [ANSWER, 1]

It is symmetric, with the mean z = 0 at the middle, the peak\'s location.

Most of this area lie between -2<z<2, about 95% of it. Around 68% lie within -1<z<1, meanwhile.