81,85,82, 93,85,84,95,87,88,91
Find the standard deviation.
what about the formula do you not understand?
There are many handy online calculators that you can use to check your answer.
- find the mean
- take the difference between each of your data values and the mean
- square each of these differences
- add up these squares of differences
- divide by 10
- take the square root
I will not do the arithmetic of that for you