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You used SS = (x-x)² when calculating variance and standard deviation An alternative formula for the standard deviation that is sometimes convenient for hand calculations is shown below. You can find the sample variance by dividing the sum of squares by n - 1, and the sample standard deviation by finding the square root of the sample variance. Complete parts (a) and (b) below. (Ex)² SSx = x². n Click the icon for a table of the ages (in years) of shoppers at a local store. S= ... (a) Use the shortcut formula to calculate the sample standard deviation. (Simplify your answer. Round to one decimal place as needed.)

You used SS = (x-x)² when calculating variance and standard deviation An alternative formula for the standard deviation that is sometimes convenient for hand calculations is shown below. You can find the sample variance by dividing the sum of squares by n - 1, and the sample standard deviation by finding the square root of the sample variance. Complete parts (a) and (b) below. (Ex)² SSx = x². n Click the icon for a table of the ages (in years) of shoppers at a local store. S= ... (a) Use the shortcut formula to calculate the sample standard deviation. (Simplify your answer. Round to one decimal place as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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Data table 15 19 20 18 14 18 15 19 Shoppers' Ages 17 22 19 16 18 17 18 19 17 14 17 14
Transcribed Image Text:Data table 15 19 20 18 14 18 15 19 Shoppers' Ages 17 22 19 16 18 17 18 19 17 14 17 14
You used SS = (x-x)2 when calculating variance and standard deviation. An alternative formula for the standard deviation that is sometimes convenient for hand calculations is shown below. You can find the sample variance by dividing the sum of squares by n - 1, and the sample standard deviation by finding the square root of the sample variance. Complete parts (a) and (b) below. (Ex)² SS=x². n Click the icon for a table of the ages (in years) of shoppers at a local store. (a) Use the shortcut formula to calculate the sample standard deviation. S= (Simplify your answer. Round to one decimal place as needed.)
Transcribed Image Text:You used SS = (x-x)2 when calculating variance and standard deviation. An alternative formula for the standard deviation that is sometimes convenient for hand calculations is shown below. You can find the sample variance by dividing the sum of squares by n - 1, and the sample standard deviation by finding the square root of the sample variance. Complete parts (a) and (b) below. (Ex)² SS=x². n Click the icon for a table of the ages (in years) of shoppers at a local store. (a) Use the shortcut formula to calculate the sample standard deviation. S= (Simplify your answer. Round to one decimal place as needed.)
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