Azarias is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below. +20+ 2 Brightness Level (x) 23 41 43 74 80 98 1 Hours (y) 6.2 10 20 30 40 50 60 70 80 90 100 110 2958NN 3632 3.9 6.5 3.8 1.7 2.2 Calculate the correlation coefficient. Round accurately to at least three decimals. Use the correlation coefficient to describe the strength and direction:
Azarias is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below. +20+ 2 Brightness Level (x) 23 41 43 74 80 98 1 Hours (y) 6.2 10 20 30 40 50 60 70 80 90 100 110 2958NN 3632 3.9 6.5 3.8 1.7 2.2 Calculate the correlation coefficient. Round accurately to at least three decimals. Use the correlation coefficient to describe the strength and direction:
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 24PFA
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