On all normal curves the area between the mean and +1 standard deviation will be________.
A) about 34% of the total area.
B) about 68% of the total area.
C) about 95% of the total area.
D) about 99% of the total area.

Question

Quizplus · Accepted Answer

The area between the mean and +1 standard deviation on a normal curve is about 34% of the total area. This is a characteristic of the normal distribution, where approximately 68% of the data falls within one standard deviation of the mean (34% on each side of the mean).

On All Normal Curves the Area Between the Mean and +1