In the normal distribution, what percentage of scores fall within one standard deviation of the mean?

Loading ...

Correct Answer: **C.** *68%*

This question doesnâ€™t require any calculation, but rather knowledge of the standard deviation sets. Typically, about 68% is included in the first standard deviation, and 95% is included in the 2nd standard deviation. 99.5% of all people fall within three standard deviations of the mean in the normal curve.

**Subscribe below** to receive the DAT Question of the Day delivered straight to your inbox every morning.