Hello Everyone, I just have one math question that I need assistence on. I'd appreciate if you could help me. Thanks for your time and your assistence. It's much needed. :)

Heres the question (or statement rather):

Find the standard deviation of the data: 2, 4, 7, 8, 9. Round to the nearest tenth.

I would like for you to possibly show me the steps in how you solved this problem (please) because I do not just want the answer, I also want to understand this so that I can refer back to this for other/similar problems. Once again, thanks so much for helping me. I truly appreciate it. :)

Guest Sep 24, 2018

#1**+3 **

First find the mean of the data numbers

2+4+7+8+9 / 5 = 6

Take the diff from the mean of each of the numbers

4 2 1 2 3 Square these and find the mean

16 4 1 4 9 Mean = 6.8 and take the square root of this 2.6 = S.D.

ElectricPavlov
Sep 24, 2018