Question 351727
Hint: 


Step 1) Find the mean


Step 2) Find the differences of the mean from each data value


Step 3) Square each difference


Step 4) Add up those squares


Step 5) Divide that sum by n-1 (where n is the number of numbers in the data set)


Step 6) Take the square root of the result from step 5 to get the standard deviation



Alternatively, you can use a calculator to calculate the standard deviation.