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:

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