Question

calculate sample standard deviation the.n round to one more decimal place than the largest number of the decimal places provided

Answer 1

step 1

Calculate the average of the numbers

so

average=1,962.2/20

average=98.11

step 2

Subtract the mean from each number and Square each of the differences

so

(98.0-98.11)^2=0.0121

(98.4-98.11)^2=0.0841

(97.4-98.11)^2=0.5041

(97.0-98.11)^2=1.2321

(96.5-98.11)^2=2.5921

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.step3

Add up all of the results from Step 2 to get the sum of squares

step 4

Divide the sum of squares, by the number of numbers minus one ( in this problem divided by 19)

step 5

Take the square root to get the result, this number s the sample standard deviation