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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. (2x)² ss, X Data table Click the icon for a table of the ages (in years) of shoppers at a lo Shoppers' Ages 20 W 19 18 14 0 20 16 17 (a) Use the shortcut formula to calculate the sample standard deviatio 15 16 17 16 16 23 14 16 (Simplify your answer. Round to one decimal place as needed.) 14 14 20 15 16 Print Done

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. (2x)² ss, X Data table Click the icon for a table of the ages (in years) of shoppers at a lo Shoppers' Ages 20 W 19 18 14 0 20 16 17 (a) Use the shortcut formula to calculate the sample standard deviatio 15 16 17 16 16 23 14 16 (Simplify your answer. Round to one decimal place as needed.) 14 14 20 15 16 Print Done

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
Section10.5: Comparing Sets Of Data
Problem 19PPS
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Solve it correctly both subparts

(Simplify your answer. Round to one decimal place as needed.) (b) Find the sample standard deviation using the usual formula of s= The sample standard deviation is. This is (Simplify your answer. Round to one decimal place as needed.) Σ(x-x)² n-1 the result from part (a). and compare it to your result from part (a).
Transcribed Image Text:(Simplify your answer. Round to one decimal place as needed.) (b) Find the sample standard deviation using the usual formula of s= The sample standard deviation is. This is (Simplify your answer. Round to one decimal place as needed.) Σ(x-x)² n-1 the result from part (a). and compare it to your result from part (a).
100 You used SS, -2(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. SS, 1². - X Click the icon for a table of the ages (in years) of shoppers at a lo Data table Shoppers' Ages. 20 19 18 20 20 16 (a) Use the shortcut formula to calculate the sample standard deviatio 15 18 17 SH 16 23 14 (Simplify your answer. Round to one decimal place as needed.) 14 14 15 16 Print Done 14 17 16 16 R
Transcribed Image Text:100 You used SS, -2(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. SS, 1². - X Click the icon for a table of the ages (in years) of shoppers at a lo Data table Shoppers' Ages. 20 19 18 20 20 16 (a) Use the shortcut formula to calculate the sample standard deviatio 15 18 17 SH 16 23 14 (Simplify your answer. Round to one decimal place as needed.) 14 14 15 16 Print Done 14 17 16 16 R
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