Here is a cute little video from the KhanAcademy
to show the basic method.
It will depend on how you were taught whether you divide by 7 or by 6.
You will have to check your notes or your textbook
https://www.khanacademy.org/math/statistics-probability/displaying-describing-data/sample-standard-deviation/v/sample-standard-deviation-and-bias
What is the standard deviation of the data set?
Round the answer to the nearest tenth.
5, 9, 11, 4, 8, 9, 12
1 answer
4 answers