Question

Find the standard deviation for the given sample data. Round your answer to one more decimal place than the original data.

Answer 1

Answer:

D) Standard deviation is 5.41

Step-by-step explanation:

We are given

count N = 9

Sum ∑xi = 113

Mean =  ∑xi /N = 12.55

Standard deviation = $\sqrt{ \frac{(summation xi-mean)^2}{N} - (mean)^2 }$ where i = 1 to 9

 upon substituting the values we get

Standard deviation = $\sqrt{29.277}$ = 5.41