Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13

Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13 

Answer Details

S.D = ∑√(x−x)2N=∑d2N=28√7 $\frac{\sqrt{\sum }(x-x{)}^2}{N}=\frac{\sum d^2}{N}=\frac{\sqrt{28}}{7}$ 

= 4–√ $\sqrt{4}$ 

= 2