When all the scores in a set of data are the same,what is ?
A)0
B)Greater than 0
C)Less than 0
D)Unknown;cannot compute without the scores

Question

When all the scores in a set of data are the same,what is  ?
A)0 
B)Greater than 0 
C)Less than 0 
D)Unknown;cannot compute without the scores

Quizplus · Accepted Answer

If all the scores in a set of data are the same, it means there is no variability in the data, and the difference between any two scores would be zero. Therefore, the standard deviation (which measures the variability or spread of the data) would also be zero. The formula for standard deviation involves calculating the differences between each score and the mean, so if all the scores are the same, this calculation would result in zero. Thus, the answer is 0.

When All the Scores in a Set of Data Are