I don't know how to do this. Help !!!!!!!!!!!!!!!
Find the standard deviation. Round to one more place than the data. 6, 5, 9, 13, 18, 7, 5, 20, 11, 15

A. 5.4

B. 1.2

C. 4.9

D. 5.1

Question

I don't know  how to do this. Help !!!!!!!!!!!!!!!
Find the standard deviation. Round to one more place than the data.	6, 5, 9, 13, 18, 7, 5, 20, 11, 15

A. 5.4	

B. 1.2	

C. 4.9	

D. 5.1

anonymous · Answer

step one - find the average.

anonymous · Answer

step two - square the difference between this average and each data point.

anonymous · Answer

step three - find the average of the results from step two

anonymous · Answer

step four - the standard deviation is the square root of the value from step three

anonymous · Answer

thank u

anonymous · Answer

no problem.  just let us know if you have more questions.

anonymous · Answer

step 2 should look like this 6^10.9 = 303 283 392