After a researcher adds 5 points to every score in a sample,the standard deviation is found to be s = 10.The original sample had a standard deviation of s = 5.

Question

After a researcher adds 5 points to every score in a sample,the standard deviation is found to be s = 10.The original sample had a standard deviation of s = 5.​

Quizplus · Accepted Answer

Adding or subtracting a constant from every score in a sample does not change the standard deviation; it only shifts the data points. The standard deviation remains the same because it measures the spread of the data around the mean, not the absolute values of the data.

After a Researcher Adds 5 Points to Every Score in a Sample,the