A random sample from an unknown population had a sample standard deviation of zero. From this piece of information, which one of the following is a reasonable conclusion?
A) The sample range must be zero.
B) An error was made in computing the sample standard deviation. It must always be greater than zero.
C) The population standard deviation must be zero.
D) The population standard deviation must be less than zero

Question

Quizplus · Accepted Answer

If the sample standard deviation is zero, it means all the sample data points are identical, leading to a sample range of zero.

A Random Sample from an Unknown Population Had a Sample