calculating standard deviation

Question 1

step 1

Answer 1

calculate the mean

Question 2

step 2

Answer 2

take away the mean from each value

Question 3

step 3

Answer 3

add all the x-mean values you have just calculated

Question 4

step 4

Answer 4

divide all the values by n-1 where n stands for the number of values there are

Question 5

step 5

Answer 5

square root the variance for standard deviation