The following data show the yearly salaries (in £000s) of student union officers at eight universities....
The following data show the yearly salaries (in £000s) of student union officers at eight universities.
University Salary
A 43 B 34 C 38 D 47 E 52 F 59 G 53 H 45
Question: What is the the standard deviation? (use 2 decimal places)
Homework Answers
Answer)
First step is to find the mean
Mean = (sum of the observations)/(number of observations)
Mean = (43 + 34...)/8 = 46.375
Now we need to subtract mean from each and every observations and then we need to take the square and add the results
= (43 - 46.3755)^2 + (34 - 46.375)^2...
= 471.875
Now we need to divide 471.875 by n-1 that is by 7 and take the square root
S.d = √{471.875}/7} = 8.2104
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