Suppose Consumer Reports would like to ipvestigate the relationship between the battery life, in hours, and the screen size, in diagonal inches, of a laptop computer. The following table shows a random sample of eight laptops and the battery life, in hours, and corresponding screen size, in inches, of each. Complete parts a through c. E Click the icon to view the data. a. Calculate the sample covariance. Data Table Sxy D (Type an integer or decimal rounded to three decimal places as needed.) Battery Life Screen Size b. Calculate the sample correlation coefficient. 3.4 15.8 4.5 17.5 (Type an integer or decimal rounded to three decimal places as needed.) 14.4 4.1 4.4 11.7 c. Describe the relationship between x and y 3.1 14.4 V relationship between these two variables. As screen size increases, battery life tends to 3.2 13.2 There is 4.7 11.5 3.8 13.6
Suppose Consumer Reports would like to ipvestigate the relationship between the battery life, in hours, and the screen size, in diagonal inches, of a laptop computer. The following table shows a random sample of eight laptops and the battery life, in hours, and corresponding screen size, in inches, of each. Complete parts a through c. E Click the icon to view the data. a. Calculate the sample covariance. Data Table Sxy D (Type an integer or decimal rounded to three decimal places as needed.) Battery Life Screen Size b. Calculate the sample correlation coefficient. 3.4 15.8 4.5 17.5 (Type an integer or decimal rounded to three decimal places as needed.) 14.4 4.1 4.4 11.7 c. Describe the relationship between x and y 3.1 14.4 V relationship between these two variables. As screen size increases, battery life tends to 3.2 13.2 There is 4.7 11.5 3.8 13.6
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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