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

Answer 1

step one - find the average.

Answer 2

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

Answer 3

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

Answer 4

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

Answer 5

thank u

Answer 6

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

Answer 7

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