Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone. * 1004 975 992 935 973 920 y 40 100 145 155 LA USE SALT (a) Make a scatter diagram of the data and visualize the line you think best fits the data. 1000 980 y (maximum wind speed (in miles per hour)) 960 940 60 80 100 120 140 O x (lowest pressure (in millibars)) y (maximum wind speed (in miles per hour)) 8 8 8 8 8 8 8 920 940 960 980 1000 O x (lowest pressure (in millibars)) 1000 980 y (maximum wind speed (in miles per hour)) 960 240 920 60 100 120 140 O x (lowest pressure (in millibars)) F 8 8 8 8 8 8 y (maximum wind speed (in miles per hour)) 40 9 920 940 960 980 1000 O x (lowest pressure (in millibars)) b) Would you say the correlation is low, moderate, or strong? O low O moderate O strong Would you say the correlation is positive or negative? O positive O negative (c) Use a calculator to verify that _ x = 5799, > x2 = 5,610,059, > > = 589, > >2 = 67,931 and _xy = 562,047. Compute r. (Round your answer to four decimal places.) As x increases, does the value of / imply that y should tend to increase or decrease? Explain your answer. O) Given our value of r, y should tend to decrease as x increases