Calculate the standard deviation of the following set of numbers. use the formula for standard deviation shown below, where x represents the values, in is the number of values, and ⣠is the summation symbol, which indicates that you should add the values.
x=√1/n(n-1) (nΣx²-(Σx²))
Values: x₁=11, x₂=14,x₃=8
Do not round your answer
Step 1. Calculate the square of each data value
x²/¹=_____ x²/²=____ x²/³=______