Answer number 30,31

Make Se most after Problems 30 and 31 refer to the following situation: Researchers recorded the number of fires (measured in states: thousands) and the total number of acres burned (measured in millions of acres) each year for 11 Western x : # of fires (thousands) y : Total acres burned (millions) 6.2 73 69 58 48 84 62 57 45 70 63 48 4.2 1.9 2.7 5.0 1.6 3.0 1.6 1.5 2.0 3.7 30) (10 pts) Draw the scatter diagram and calculate the linear correlation coefficient 31) (5 pts) Does a linear relation exist between number of fires and acres burned? Why? Critical Values (CV) for Correlation Coefficient CV n CV n CV n CV 3 0.997 10 0.632 17 0.482 24 0.404 4 0.950 11 0.602 18 0.468 25 0.396 5 0.878 12 0.576 19 0.456 26 0.388 6 0.811 13 0.553 20 0.444 27 0.381 7 0.754 14 0.532 21 0.433 28 0.374 0.707 15 0.514 22 0.423 29 0.367 0.666 16 0.497 . 23 0.413 30 0.361