For a sample of size 5, if x1 - x̄ = -5, x2 - x̄ = 9, x3 - x̄ = -7, and x4 - x̄ = -2, then the sample standard deviation is:
Choose one answer.
a. 5.639
b. 6.782
c. None of the other answers are correct
d. 6.305
e. 6.066
Please note that x̄ is x-bar (mean of sample).
This...