(b) Use the defining formula to compute the sample standard deviation s. Recall the defining formula used to compute the sample standard deviation s = where x is a n – 1 member of the data set, x is the mean, and is number of data values. Before using the formula, we must determine x and n. There are five values in the data set 1, 6, 7, 8, 9, so n = Calculate the mean x = L* by taking the average of the data values, which is dividing the sum of the data in values by the number of data values.

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(b) Use the defining formula to compute the sample standard deviation s.
Ex- x)² where x is a
Recall the defining formula used to compute the sample standard deviation s =
n - 1
member of the data set, x is the mean, and n is number of data values. Before using the formula, we must
determine x and n.
There are five values in the data set 1, 6, 7, 8, 9, so n =
Calculate the mean x =
by taking the average of the data values, which is dividing the sum of the data
values by the number of data values.
Σ
X =
n
1 + 6 + 7 + 8 + 9
Transcribed Image Text:(b) Use the defining formula to compute the sample standard deviation s. Ex- x)² where x is a Recall the defining formula used to compute the sample standard deviation s = n - 1 member of the data set, x is the mean, and n is number of data values. Before using the formula, we must determine x and n. There are five values in the data set 1, 6, 7, 8, 9, so n = Calculate the mean x = by taking the average of the data values, which is dividing the sum of the data values by the number of data values. Σ X = n 1 + 6 + 7 + 8 + 9
Expert Solution
Step 1

Given the data 

1, 6, 7, 8 , 9

n = 5

Mean, x=i xin

             = 1+6+7+8+95

             = 6.2

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