For a somewhat normal distribution, the range is approximately equal to how many times
The standard deviation?
A)2
B)4
C)6
D)8

Question

Quizplus · Accepted Answer

For a somewhat normal distribution, the range (the difference between the maximum and minimum values) is approximately equal to 6 times the standard deviation. This is based on the empirical rule, which states that about 99.7% of data falls within three standard deviations (3σ) of the mean in a normal distribution. Since the range covers from the minimum to the maximum value, it spans approximately 6 standard deviations (3σ on each side of the mean).

For a Somewhat Normal Distribution, the Range Is Approximately Equal